- A_AlertMonsters flags submission by NeuralStunner.
- Merge DUMB commit d31fb2084659b64d07eb0644d9bacfd67059d066 to zdoom.

    Fixed C++11 compilation error on Mac OS X
Shut up warnings from the customized DUMB code.
Merge branch 'maint'
- fixed: When calculating an y-texture offset the scale was multiplied with instead of divided by.
- made some alterations to last commit after reviewing how the broken code managed to get into GZDoom.
Merge branch 'master' of https://github.com/rheit/zdoom