Added ability to enter a few characters at the prompt and then search backwards/forwards through history with up and down arrows
Moved arrow-keys-search-history from lib to available plugins
inclued brunton theme
Delete brunton.theme.bash~
included safe battery charge to prevent error when battery plugin not enabled
prevent battery_charge call from erroring in themes when battery plugin not enabled
updated brunton theme to use battery_charge
Merge branch 'feature/update_from_upstream' into develop