Port AboutMe section to Grid
Fix typo in GConf code

In a recent commit, a typo was introduced: GConf.CLient
This patch fixes the typo.
Merge branch 'aboutme-grid' of https://github.com/clone-sugar/sugar into clone-sugar-aboutme-grid
Remove monochrome from battery icon while charging

Fixes #44 .  This is part of the fix.  Previously the charging state was
distinguished with the monochrome, but was too ambiguous.  Now we added
a Z lightinng bolt inside the icon.