The previous implementation was crashing the make vim utility, after
saving it was required to use :redraw! in order to keep using the editor.
After a lot of investigation, I realized that the use of && in commands is not
of the like to the :make vim utility.
The use of the && command was updated with "{ commad1; command2 }" approach,
this way we got the result we wanted without any obnoxious side effect.
Previously ghc was being used, but this was not good because
ghc would work only on individual files. As soon you included
an external module also developed on the current project, ghc would
barf at you saying that the module couldn't be found. ghc-mod
doesn't check dependencies, just syntax, also it has the lint
utility that is pretty handy.
