Update powerline to show conda environments
Add in conda tab-completion
Use relative symlinks during installation

When using dotfiles synced between different machines, this allows
enabled aliases, completions, and plugins to work with varying
home directories.
Use relative symlinks for enabling plugins

This extends 10bda0c for post-install enablements as well.
Merge pull request #281 from jbarbuto/use_relative_symlinks

Use relative symlinks when enabling plugins
Merge pull request #280 from hawkbee/hawkbee

Add git config option bash-it.hide-status to decide whether check git st...
Merge branch 'master' into hawkbee