ffcall formula fix

diffutils installs locale files now

fix nano formula

added less

removed sudo from install readline and git part (install.sh)

Add emacs, jdk x64, ncurses_so, autoconf, automake, clisp, diffutils, ffcall, libsigsegv, m4, powerline fonts & update zsh, vim, ncurses

Added htop package

Added Nano and Rsync packages

Don't re-download tarballs every time

Exact warning follows, WARNING:timestamping does nothing in combonation with -O

And, '-N' option to timestamp check. Just in case there really is a new
file.

Update crew

Modify the download method to specify an output filename