Environment Variable Support

Added support for environment variables using the following format:
${BUILD_NUMBER}
Fixed Issue that caused Env Variable to be evaluated once
Added Token-Macro plugin dependancy
Token-Macro Support

Modified the Env variable parsing to support Token-Macro plugin. Also made the macro supported on all fields.
Merge pull request #1 from elksson/master

:shipit
Merge commit '8d621315059462a5578834aee4f5b3db601d8d79' into dev

# By elksson
# Via Maurice Williams (1) and elksson (1)
* commit '8d621315059462a5578834aee4f5b3db601d8d79':
  Token-Macro Support
  Added Token-Macro plugin dependancy
  Fixed Issue that caused Env Variable to be evaluated once
  Environment Variable Support

Conflicts:
	pom.xml
	src/main/java/org/jenkinsci/plugins/ParameterizedRemoteTrigger/RemoteBuildConfiguration.java