Shorter mipsle shell_reverse_tcp
Add formatting blank lines and delete comment
Delete delay slots after syscall
Save some instructions with dup2
Modify authors field
Delete comment
Fix bind call
Make better comment
Fix my own busted dup2 sequence
Don't use a temporary registerfor the dup2 loop counter
Don't use temporal register between syscals and save some bytes on the execve
Allow the Msf::Payload::Linux's generate to make its work
Update msftidy to check for double quotes
Add Rex::Proto::PJL and PoC modules
Address @wchen-r7's comments
Address @jlee-r7's comments
Add filesystem commands and new PoC modules

This commit also refactors some of the code.
Refactor away leftover get_rdymsg
Remove newline from end_job to conform to spec
Replace magic numbers with constants