#20 Added remove() method to Gists

Added remove(String name) method to Gists to delete a gist by name, plus
unit and integration testing.
#20 fixed code style

fixed code style.
#20 fixes
from master
Issue #21: Gist forking
Merge remote-tracking branch 'upstream/master'
fixed merge conflicts
#20 fixes
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' into 20
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' into 20
#20 Solved RtGistsITCase
Merge remote-tracking branch 'upstream/master'
# 20 merged with master and changed RtGistsITCase
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
#20 soled merge conflicts
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' into 20