Update README.textile

Added instructions for installing zsh (due to the problems with first time zsh users)
Update README.textile
Update rvm.plugin.zsh

Ruby 2.1.1 -> Ruby 2.1.2.
Merge pull request #2994 from admpsktt/patch-1

Update rvm.plugin.zsh
Merge pull request #2993 from mittalabhas1/master

Update README.textile
initial fork commit; unignoring custom/
added current .zshrc
minor changes to custom alias
switched theme
fiexed path for ack
added new utility command
fixed output to always output color (also in pipes)
added new alias
added reverse search key binding
added alias
added wc alias
switched theme
addded haskell local bin folder
updated zshrc
added home-dir to bins