Ignore history file
Remove howdoi package
Remove ido-vertical-mode package
Remove quickrun package
Remove strip-buffer package
Remove twittering-mode package
Fix ace-jump-mode autoload
Add file variable 'mode' to .spacemacs.template
Add new variables to .spacemacs.template
Update doc in .spacemacs.template
Add function spacemacs/declare-configuration-layers
Change spacemacs/ prefix to contribsys/