Update README.textile

Add upgrade command to docs. I canceled the prompt once and went hunting for this so I could upgrade.
Merge pull request #1870 from mfrobben/patch-1

Update README.textile
unignore custom so that i can check into my own fork
add git svn alias
my personal config
Added gradle aliases. Removed unused one
Merge branch 'master' of https://github.com/h3adache/oh-my-zsh
Updated zshrc