Fix a number of errors that prevented the initialization of the add-on.
Display image tooltips in the rule-view for background urls
Merge pull request #26 from past/fix-errors

Fix a number of errors that prevented the initialization of the add-on.
Merge pull request #27 from captainbrosset/image-tooltips-in-ruleview

Display image tooltips in the rule-view for background urls
Release 0.0.3, bump to 0.0.4pre
Fix #25 - React to Inspector.inspect events to enable the picker on iOS
Merge pull request #30 from captainbrosset/pick-node-ios

Fix #25 - React to Inspector.inspect events to enable the picker on iOS
Store the new nodeValue when it is changed via the markup-view