Readied overwritten function for displaying the last command indicator
Removed declares in git-prompt-colors.sh as they are not compatible with the Bash on MacOS X
Readded the LAST_COMMAND_INDICATOR-Functionality, which got lost on last merge.
Added fix for #67
aks: resolved conflicts with original master
Merge branch 'master' of https://github.com/aks/bash-git-prompt into aks-master

Conflicts:
	git-prompt-colors.sh
	gitprompt.sh
Merge branch 'aks-master'
aks: fixed bug in original/master parameter replacement; resolved trivial conflicts
Fixed typo in color name. Fixes #70
Merge branch 'master' of https://github.com/aks/bash-git-prompt into no_global_declare
Merge branch 'master' of https://github.com/magicmonty/bash-git-prompt into no_global_declare