Adds Maven pom.xml and Eclipse project files
Removes hard-coding of "workspace" directory
Fixes TempEval2 script so that it generates -retok and -retok-numbers files as well
Removes hard-coded pos-tagger model file
Merge pull request #1 from bethard/master

Fixes some hard coded paths, generation of tempeval2-english-retok-numbers, and Maven/Eclipse support