feat: new ctl (#395)

This is a complete new version of `ipfsd-ctl` dragons ahead!

BREAKING CHANGE:


Problems: 
- Browsers tests skipped cause ctl didn't support proper connectivity to remote nodes
- We weren't able to tell ctl to use a specific commit of http-client, js-ipfs or cli
- Options/config between the 3 types of daemons weren't consistent
- Ctl didn't support remote "in process" daemon
- IPFS options were handled manually inside ctl, so any change in js-ipfs would require a PR in ctl to support the new options or change to an option

Related issues:
- #208
- #397
- #374
- #315
- #207
- #217
- and more 
 
Improvements:
- better errors
- DEBUG='ipfsd-ctl:*' everywhere
- factories for tests with good defaults
- options are properly merged everywhere
- safer child_process exit `stop()`
- faster stop()
- IPFS Options are now the same format as https://github.com/ipfs/js-ipfs/blob/master/README.md#ipfs-constructor
- Ctl can init, start and set config in one cmd (at least with js-ipfs)
- better docs and jsdocs
- we can now be sure which http-client, ipfs or go-ipfs is being used
- utils functions actually work in the browser now
- works in webworkers now
- simpler and faster overall
- disposable node actually clean themselves in the browser
- better tests
- ...
- support electron
- test in electron

New: 
- new method `createController` returns a spawned controller
- createFactory as a second parameter to override options per type


Changes: 
- `create` change to `createFactory`
- `createFactory` options changed   

Old
```md
- `options` - optional object with:
  - `remote` bool - use remote endpoint to spawn the nodes.
  - `port` number - remote endpoint port. Defaults to 43134.
  - `exec` - IPFS executable path. `ipfsd-ctl` will attempt to locate it by default. If you desire to spawn js-ipfs instances in the same process, pass the ref to the module instead (e.g `exec: require('ipfs')`)
  - `type` - the daemon type, see below the options
    - `go` - spawn go-ipfs daemon
    - `js` - spawn js-ipfs daemon
    - `proc` - spawn in-process js-ipfs instance. Needs to be called also with exec. Example: `DaemonFactory.create({type: 'proc', exec: require('ipfs') })`.
  - `IpfsClient` - A custom IPFS API constructor to use instead of the packaged one
```

**New**
```markdown
-   `remote` [boolean] Use remote endpoint to spawn the nodes. Defaults to `true` when not in node.
-   `test` [test=false] - Flag to activate custom config for tests.
-   `endpoint` [endpoint] - Endpoint URL to manage remote Controllers. (Defaults: 'http://localhost:43134').
-   `disposable` [Boolean] A new repo is created and initialized for each invocation, as well as cleaned up automatically once the process exits.
-   `type` [string] The daemon type, see below the options:-   go - spawn go-ipfs daemon
    -   js - spawn js-ipfs daemon
    -   proc - spawn in-process js-ipfs instance
-   `env` [Object] Additional environment variables, passed to executing shell. Only applies for Daemon controllers.
-   `args` [Array] Custom cli args.
-   `ipfsHttp` [Object] Setup IPFS HTTP client to be used by ctl.
    -   `ipfsHttp.ref` [Object] Reference to a IPFS HTTP Client object. (defaults to the local require(`ipfs-http-client`))
    -   `ipfsHttp.path` [string] Path to a IPFS HTTP Client to be required. (defaults to the local require.resolve('ipfs-http-client'))
-   `ipfsApi` [Object] Setup IPFS API to be used by ctl.
    -   `ipfsApi.ref` [Object] Reference to a IPFS API object. (defaults to the local require(`ipfs`))
    -   `ipfsApi.path` [string] Path to a IPFS API implementation to be required. (defaults to the local require.resolve('ipfs'))
-   `ipfsBin` [String] Path to a IPFS exectutable . (defaults to the local 'js-ipfs/src/bin/cli.js')
-   `ipfsOptions` [IpfsOptions] Options for the IPFS instance
```

- Previous default ipfs config is only applied when `test` options equals `true`
- `defaultAddrs` option was removed 
- Spawn options are the same as `createFactory`

Old
```
- `options` is an optional object the following properties:
  - `init` bool (default true) or Object - should the node be initialized
  - `initOptions` object - should be of the form `{bits: <size>}`, which sets the desired key size
  - `start` bool (default true) - should the node be started
  - `repoPath` string - the repository path to use for this node, ignored if node is disposable
  - `disposable` bool (default true) - a new repo is created and initialized for each invocation, as well as cleaned up automatically once the process exits
  - `defaultAddrs` bool (default false) - use the daemon default `Swarm` addrs
  - `args` - array of cmd line arguments to be passed to ipfs daemon
  - `config` - ipfs configuration options
```

**NEW**
Same as js-ipfs constructor https://github.com/ipfs/js-ipfs#ipfs-constructor
- ipfsd.killProcess removed not needed anymore
- ipfsd.getConfig removed call ipfsd.api.config.get instead
- ipfsd.setConfig removed, call ipfsd.api.config.set instead

**Read the README for documention on the new api and options**

Author: hugomrdias

.aegir.js

@@ -4,7 +4,7 @@ const createServer = require('./src').createServer
 
 const server = createServer() // using defaults
 module.exports = {
-  bundlesize: { maxSize: '256kB' },
+  bundlesize: { maxSize: '920kB' },
   karma: {
     files: [{
       pattern: 'test/fixtures/**/*',
@@ -14,9 +14,7 @@ module.exports = {
     }]
   },
   hooks: {
-    browser: {
       pre: () => server.start(),
       post: () => server.stop()
-    }
   }
 }

.travis.yml

@@ -14,7 +14,7 @@ os:
   - osx
   - windows
 
-script: npx nyc -s npm run test:node -- --bail --timeout 30000
+script: npx nyc -s npm run test:node -- --timeout 60000
 after_success: npx nyc report --reporter=text-lcov > coverage.lcov && npx codecov
 
 jobs:
@@ -30,15 +30,26 @@ jobs:
       name: chrome
       addons:
         chrome: stable
-      script: 
-        - npx aegir test -t browser -t webworker --bail --timeout 30000
+      script:
+        - npx aegir test -t browser -t webworker --bail --timeout 60000
 
     - stage: test
       name: firefox
       addons:
         firefox: latest
-      script: 
-        - npx aegir test -t browser -t webworker --bail --timeout 30000 -- --browsers FirefoxHeadless
+      script:
+        - npx aegir test -t browser -t webworker --bail --timeout 60000 -- --browsers FirefoxHeadless
 
+    - stage: test
+      name: electron-main
+      os: osx
+      script:
+        - npx aegir test -t electron-main --bail --timeout 60000
+
+    - stage: test
+      name: electron-renderer
+      os: osx
+      script:
+        - npx aegir test -t electron-renderer --bail --timeout 60000
 notifications:
   email: false