savebuff: do not skip channels with AutoClearChanBuffer==true
modpython: set has_args and args_help_text from module
simple_away: apply auto-away on load if no user is connected
Support CZNC::GetUserMap() from modpython.

Thanks to lol768 for reporting it.
Merge commit 'refs/pull/722/head' of github.com:znc/znc
Fix #725: CHTTPSock memory leak - missing deflateEnd() call
Merge pull request #721 from markusj/modpy-can-have-args

modpython: Use has_args and args_help_text from module
Merge pull request #726 from jpnurmi/leak

Fix #725: CHTTPSock memory leak - missing deflateEnd() call
Merge pull request #727 from markusj/savebuff-on-autoclear-too

savebuff: do not skip channels with AutoClearChanBuffer==true