Vim: Improve ag/ack to ignore case and allow more files in results
Improve comment in Rakefile, add more brews

Add:
 * jq brew
 * postgresql brew
 * pg-commander brew cask

Fix:
 * DRY_RUN comment
Add bin symlinks, add git-rubocop and standuplog bin scripts and aliases

Add:
 * The bin symlinks in the Rakefile
 * git-rubocop bin script to run rubocop on added/modified ruby files in git
 * standuplog bin script to show the git commits since the last workday
 * Aliases for the new bin scripts (git-rubocop and standuplog)