Add emacs pastebin integration
Add global projectile binding
A bit more ghci config.
Make haskell config a bit better

- add unmtl command to ghci
- assume some language extensions in ghc linter
- fix C-j keybinding conflict in haskell interactive mode
Resolve C-c C-space keybinding conflict

by rebinding erc-track-switch-buffer to C-c C-\
Make projectile-files appear at top of list