added michelebologna theme
added comment for auto-generated hostname color
Merge pull request #1645 from mbologna/master

a new theme, different from the already existent themes :)
added my minimal git plugin
added my theme
modified and git-added files count as modified
updated LESS env var to match engage-dev VM

makes eg. `git stash list` not go into pager mode unnecessarily
fix prompt: remove redundant outgoing indicator
NOT YET TESTED: update omz upgrade script to rebase from source
update aliases
update prompt
remove zsh auto-correction
exclude .swp files in grep alias
update prompt colors
update 'history' alias to exlucde numbers in list
update grep alias to exclude binary files
fix upstream
update aliases

* add 'pretty_json'
* remove stupid aliases for 'sudo'
remove username and update pwd color in prompt