trainer: handling colons in file like CRFsuite does for feature scaling
mvn: enforcer and attach sources
mvn: removed plexus-classworlds dependency since it isn't used
mvn: developers section
trainer: testing training and tagging the new mode.  Code coverage is at 58.7% overall with 85.7% in com.github.jcrfsuite (for the Trainer and Tagger)
CrfTrainerTest: comment corrections
Merge pull request #2 from juharris/master

Version 0.3: handling feature scaling in training and testing + unit tests