Add ErlangCheck from sf.net rpmlint to check inside obs.

Following checks are available:
 - beam-compiled-without-debug_info
 - beam-was-not-recompiled

One extra dummy check: (to make work when no pybeam installed)
 - beam-found-but-no-pybeam-installed
Fix ErlangCheck.py filename in the header.
ErlangCheck: use `if ... not in ...` instead of `if not ... in ...`.
ErlangCheck: remove Dummy check for openSUSE
Merge pull request #2 from matwey/for-mainline

Add ErlangCheck