Relax the dependencies on logstash-devutils

The right version for logstash-devutils will be selected on the
logstash-core-plugin-api constraints

Related to elastic/logstash-devutils#48

Fixes #126

Author: ph

CHANGELOG.md

@@ -1,3 +1,5 @@
+## 3.0.2
+  - relax constrains of `logstash-devutils` see https://github.com/elastic/logstash-devutils/issues/48
 ## 3.0.1
   - Republish all the gems under jruby.
 ## 3.0.0

logstash-input-file.gemspec

@@ -1,7 +1,7 @@
 Gem::Specification.new do |s|
 
   s.name            = 'logstash-input-file'
-  s.version         = '3.0.1'
+  s.version         = '3.0.2'
   s.licenses        = ['Apache License (2.0)']
   s.summary         = "Stream events from files."
   s.description     = "This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program"
@@ -28,7 +28,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'logstash-codec-multiline', ['~> 3.0']
 
   s.add_development_dependency 'stud', ['~> 0.0.19']
-  s.add_development_dependency 'logstash-devutils', ['~> 0.0.18']
+  s.add_development_dependency 'logstash-devutils'
   s.add_development_dependency 'logstash-codec-json'
   s.add_development_dependency 'rspec-sequencing'
 end