Update documentation to latest version (1.0.7)
Merge pull request #43 from mickaeltr/patch-1

Update documentation to latest version (1.0.7)
start plugin modernization

- move to markdown for readme
- rename plugin to duplicate-finder-maven-plugin (per maven rules)
- version now 1.1.0-SNAPSHOT
Modernize the plugin, next step

- use Maven API annotations; gives a help mojo for free
- generify and clean up the crufty JDK4 code.
- build on top of basepom
- fix all license headers
- add travis CI build for JDK6, JDK7, JDK8
add openjdk6
Use grovvy scripts for integration test.

Runs way faster than bsh and there is actually IDE support.
Add more integration tests for switch behaviour.
fix bad license headers
add comprehensive test suite for resources
add comprehensive test suite for classes.
Merge remote-tracking branch 'ning/master'

Conflicts:
	src/main/java/com/ning/maven/plugins/duplicatefinder/ClasspathDescriptor.java
	src/main/java/com/ning/maven/plugins/duplicatefinder/DuplicateFinderMojo.java
updating to ning's master