Gideon : Fixed a bug in FeatureFunctionTest as a result of inconsistent usage of uppercased/lowercased version of the
feature name in LabelCombinationFF.
The test FeatureFunctionsTest now again succeeds.

 modified:   src/joshua/decoder/ff/LabelCombinationFF.java
Gideon : Fixed  test/joshua/decoder/FeatureFunctionsTest.java
so the test works out of the box, without manually setting the right
Djava.library.path in the VM arguments of eclipse.
This is done by a special function that extends "usr_paths" using reflection.

Also adapted the .classpath. Added the junit jar, which is now also retrieved from
the ivy dependencies. Removed includes of source / javadoc jars from mockito
and testng that are not automatically downloaded, and then have to every time
be manually deleted in eclipse, which is annoying.
Remark: Another way to fix this is to change the ivy.xml somehow to fetch the
javadoc / sources automatically as well, but not sure how to do this.