[FEATURE] Build System: added SEQAN_DATE and SEQAN_REVISION from git or svn
[FIX] Search/Join: fixed date and revision
[FIX] Build System: removed duplicated git_wc_info macro
[FEATURE] Build System: added macro seqan_get_repository_info()

Conflicts:
	util/cmake/FindSeqAn.cmake
Merge pull request #17 from esiragusa/hotfix/date_revision

Fixed date and revision