Merge pull request #6 from bjkastel/master

Replace ParameterDefinition by SimpleParameterDefinition to allow support of current MultiJob plugin
comment assert more details see issue
https://github.com/Seitenbau/sb-jenkins-dynamicparameter/issues/7
Disabled UI elements for parameters
- Add simple support to mark String parameters as readonly
- Issue
https://github.com/Seitenbau/sb-jenkins-dynamicparameter/issues/4
- TODO: Add Tests for the implementation
Update git ignore config add jenkins work directory to ignore list
Update the README file add a section which desribes how to start the
plugin with maven.
Add me to the author list
Mark the old constructor as deprecated the old constructor should not be
called by the jenkins runtime. Only tests use the old constructor.
Clean up Java Doc
fix #4 - Disabled UI elements for parameters 
- Add support to disable choice parameters
- Fix some issues in the jelly scripts
- Not implemented is the support for the scriptler parameters
set version to 0.2.0-SNAPSHOT
fix #4 - Disabled UI elements for parameters
- Add read only support for scriptler parameters
- Ticket #4 should be closed
fix #7 - isDescendant("root", "root1") is true should be false
- Fix the implementation and the unit test.
Update REAMDME
- Add section which describes the groovy script support in the plugin.
Rename Tests
- rename the file utils test now the test will be invoked by maven
because the test class ends now with Test
[maven-release-plugin] prepare release 0.2.0
[maven-release-plugin] prepare for next development iteration
Update README

add build status
Remove build status link 

the README File should be renamend to README.md
change README format to md
Add build status information to README