Openssl_devel  - headers to allow Python building against system openssl

Fix text in README

Delete the ftp:// address

Node FIXED & Updated (and install.sh corrected)

Clean up and shorten install.sh

Conflicts:
	packages/libevent.rb
	packages/tmux.rb

I'm bad with my reverts because I'm reverting through github since I'm on my virgin chromebook

Reverting back the changes I was trying for pull 178 in the master repo

Recently formattet my chromebook pixel and wanted to try everyone's change of install.sh so I've merged pull https://github.com/skycocker/chromebrew/pull/176 into mine to try it.

add packages/yasm.rb

add fish package

Libevent and tmux fixes

Fix url in installation to avoid 301 redirects

An openssl-devel package that has just the headers so that
sofware can build and link against the chromeos supplied openssl.
This would make it ok to add openssl back as a dependency for libevent
and it makes the python-from-source recipies like with openssl right
so you can install and use pip.

Merge branch 'libevent-and-tmux-fixes' of github.com:minektur/chromebrew into libevent-and-tmux-fixes

3 changes to get tmux to work:
update tmux to latest release

remove openssl dependency for libevent (partly because openssl forumla
on chromebrew is broken right now, partly because we dont need it.)

change command line options for wget in crew script:
man page says -N is incompatible with -O (and wget complains every run)
--content-disposition not needed since we specify -O and big files on
github (which are backed by aws) can not be retrieved with this flag,
probably because AWS doesn't support HEAD requests for those files

Fixed the ln line and fixed node error, as well as changed the new name of node to follow nodejs.org naming convetion of 6.x versions

Disallow sudo