New tincd post-auth BOF exploit module

A pull request to get some feedback. I'd appreciate if you comment as well on the following:
- additional class in module (if it should be relocated, an example would be helpful, e.g. which mixins etc.)
- puts calls in the additional class
- exploit development and other comments welcome?
- Fedora ROP is on my TODO list (but I wanted to contribute the module before Christmas/holidays)
- Although I left "average ranking" in there, the exploit works for all targets with several tested (meterpreter, reverse_tcp, exec) payloads on the first execution run and is therefore very reliable.
this will return true if \n is found anywhere in inbuffer, would something like @inbuffer =~ /\n$/ be better?
Also, you're using ! .nil? which is a double negative as w/the the previous comment I would recommend changing, and in this case, would go with !!(@inbuffer =~ /\n$/) or whatever variation of the match you like.  The double !! will ensure a boolean is returned tho that's only a convention for ? methods and @inbuffer =~ /\n$/ is good enough for this use case