Initial pass at a Java Less Compiler that uses the rhino version from
the less-rhino fork.  Based off of lesscss-java but tries to be as slim
as possible and remove most code that isn't just passing parameters to
the less rhino code.
Fix compiler tests
Fix some tests
1. Remove unnecessary files
2. Update Compile to allow regular lessc arguments
3. Update LessCompiler to use default rhino less/lessc from less project
4. Update tests
Fixed the Bootstrap tests. 

1. Manually compared the bootstrap.min.css created by the test with the one created by the client side JavaScript compiler in a web page. After that I could use the bootstrap.min.css created by the test as the expected result for further tests.

2. Compared the created bootstrap.css manually with the one distributed by Bootstrap and used the created one as the expected result for further tests.
Fixed the MultithreadedIT.java test.
fixed variables test in CompatibilityIT.java
fixed LessSourceTest
Ignoring the HttpImport test in ImportIT as I don't have a solution for that.
The Maven integration tests do work only for me using 'mvn verify' with the 2.16 version of the maven-failsafe-plugin.
Merge pull request #1 from sandroboehme/master

Fixes for tests from @sandroboehme
Update version to 1.6.1-SNAPSHOT and add compiler params example to README.md
fixed #15 and Maven test setup
Integrated less 1.7.0 and fixed https://github.com/sandroboehme/lesscss-maven-plugin/issues/1. The next less.js release should have that fixed already. See https://github.com/less/less.js/pull/1956.