Squashed 'sglib/' changes from ca76419..0ec7b66

0ec7b66 Deleted testing subdirectory
1ffeb30 Fixed a bug in sglib-subtree
6772c18 Added sglib-subree command (for committing to sglib from dependent projects)
15d6dbe added bin directory

git-subtree-dir: sglib
git-subtree-split: 0ec7b66ac9101f952c3b2d16c396450714fed02c
Merge commit '4fc4dc7fb5d6c781d2eb0961c8f0f9304b4802d1'

Conflicts:
	sglib/bin/sglib-subtree