fix the fragment mode
add test for initEnvironment
fix #38 Fix test case of the initEnvironment method

Remove useless attribute of test class and change default
value for properties file and output directory.
adds ROADMAP.md
add a missing visit method in CtAbstractVisitor
Merge pull request #102 from petitpre/VisitorUpdate
Removes all methods deprecated after the release 2.4.
Merge pull request #95 from GerardPaligot/QA_38
Merge pull request #103 from GerardPaligot/clean-release-2.4
Merge pull request #101 from monperrus/roadmap
adds a first version of the contribution rules
Merge pull request #105 from monperrus/contributing