* refs/heads/master:
Allow the 'empty' group clients to be window-{h,v}tile'd.
Map ('5') and allow mod5mask (altgr) as a modifier.
add, then use, xvasprintf, checking for appropriate return.
Ensure the pointer stays within client bounds after a window 'snap' (to edge).
files, and replace them with the actual ISC license.
- add license to the manpage (it was lacking before)
- correct license statement in the README
Permission given by Marius (copyright holder):
"1. please replace with the standard ISC license
2. you may add the ISC license to the man page
3. feel free to replace the information in the README as well"
and Dros (copyright holder for group.c):
"Please switch group.c to the ISC License."
ok ian@