added possibility to ignore grunt task errors
added javadoc for ignorig errors option
readme for changes
added option to ingore all errors from Grunt
[maven-release-plugin] prepare release grunt-maven-plugin-1.1.4
[maven-release-plugin] prepare for next development iteration
Merge branch 'master' into release-1.2.0

Conflicts:
	pom.xml
changed name of properties for grunt to grunt-maven