Merge pull request #120 in FS/freeswitch from ~STEVEAYRE/freeswitch:master to master
* commit '0822f6a0200662bb01576fb3a0ce923acd9596a6':
FS-7019 swap debian/ubuntu autodetection order
FS-7019 detect debian explicitly, error on unknown distribution
FS-7019 add note on how to build on Ubuntu
FS-7019 full list of distributions to target based on distribution autodetection
FS-7019 build error on utopic (lber_types.h: No such file or directory)
FS-7019 add support for building on ubuntu trusty and utopic