importing json file from command line. related to #33
using args4j as default. working on #33
initializing groundhog parameters thru json file. a lot of work still have to be done on #33
reorganizing code
updating code structure
improving log messages. #33 and #6
few changes in the code. #33 and #6
with method to gather projects list by user. working on #33
starting groundhog both from command line arguments or via json file
merging from master.. still working on #33
download projects from a giver user. almost done. rel #33
fixing broken tests
few modifications on code design
adding tests and improving code quality. rel #33
few improvements on extractor package
commenting an assertion error. for a while.