Follow Tumblr Dashboard changes

This change updates Tumblr Model, "ReBlog - Dashboard" Extractor, "Play on Tumblr", "Dashboard + Taberareloo".
Merge pull request #212 from syoichi/pr34-tumblr

Follow Tumblr Dashboard changes
version 3.0.3-dev starts
Add popupReady event
Add inContext function into utils
Revise a layout of the patch tab with a file name
Separate contextType() from inContext()
Merge pull request #213 from YungSang/topic

Add popupReady event
Merge pull request #215 from YungSang/topic3

Revise a layout of the patch tab with a file name
Merge pull request #214 from YungSang/topic2

Add inContext function into utils
Support loading patches in options
Add no_alert parameter for multiple install/uninstall
Support Backup/Restore configurations
Merge pull request #219 from YungSang/backup

Support Backup/Restore configurations and patches
Add reset settings
Merge pull request #220 from YungSang/backup

Add reset settings
Reload Taberareloo to effect changes surely
Fix a bug to get width correctly
Merge pull request #221 from YungSang/backup

Reload Taberareloo to effect changes surely
Update jshint