Please stop adding points in tooltips, unless it is absolutely necessary! Commas, parenthesis, en quads, etc., do exist!

I took time to add basics about our UI messages conventions in blender code style guide (http://wiki.blender.org/index.php/Dev:Doc/CodeStyle#UI_Messages), so I’d like to stop wasting time over such stupid things. Especially when I alredy did it one day ago!

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@54473 954f8c5b-7b00-dc11-b283-0030488c597c