Merge pull request #32 from npostavs/master

fix snippet-mode/cont, python-mode/.yas-setup.el
add license file closing #31
new group and ipdb snippet
Update LICENSE
magit-log-edit-mode obsoleted by git-commit-mode
Split text snippets into prog and fundamental

None of the text-mode snippets were actually specific to text-mode;
fixme, todo, and xxx were for making comments, those were moved to
prog-mode. The rest are always useful, those were moved to
fundamental-mode. This allows deleting of many redundant .yas-parents
files which made text-mode a parent of various programming modes.