Merge pull request #11 from scrogson/master

Update include paths for mod_muc_admin
Fix srg_create when calling ejabberd_regexp (fixes issue #12)
Fixes srg_* commands (fixes #147)
Use Lager when compiling mod_rest, and include minimum in this repository (fixes #13)
Update create_room to work with ejabberd master
Update mod_multicast to allow compile
Handle error when requesting information of a non-existing shared roster (fixes #14)
Ignore .beam files
Binary conversions for mod_muc_admin