Integrated post type icons for new dashboard icons; initial color scheme.
Replaced home icon with book icon in admin menu.
New web font PB icon, courtesy @nudgeD.
Completed preliminary 3.8 UI updates.
Version 3.8 requirement.
Tweaked themes page CSS.
Less jarring background for the modal support box.
Moved FontAwesome to assets/fonts, removed post-type-icons plugin from symbionts.
Updated version numbers in readme files.
Merge pull request #46 from bight/3.8

3.8 compatibility.
Updated admin stylesheet version.
Search and replace integrated into PressBooks plugin.
Remove unused resources from search & replace plugin.
Make search & replace work properly.
Fix back matter display in web book footer TOC.
Implementation of back matter metadata.
TOC output for back matter metadata.
Adjustments to sidebar menu colours.
Further adjustments to 3.8 colour scheme.
Final stylesheet tweak for 3.8.