Add reload and status alises to postgres
Fixes git_compare_version() in lib/git.zsh
Refactors git.zsh.
Refactors git prompt status.
Refactors git_prompt_status
Refactors git_prompt_info.
Unifies function declarations.
Refactor and documentation.
Doc update.
Update git.zsh
Updates git_prompt_sha.
Formatting.
Making sha variable private.
Extracts git_change_status
Enhances readability of long strings.
Extracts git_current_branch
Renames GIT_HIDE for better consistency.
Adds toggle_git_prompt_visibility - fixes #2404

Reenables local hiding of a git prompt for large repositories.
Can be toggled through this new function. - Also doesn't falter when a
user has no permission to read the git config.
Add Ruby 2.1.1 support to rvm plugin
Update brew.plugin.zsh