Bug 838244 - Create a directory for shared browser theme resources. r=gavin

--HG--
rename : browser/themes/browserShared.inc => browser/themes/shared/browser.inc
Bug 838244 - Move common highlighter CSS to browser/themes/shared/. r=dcamp

--HG--
rename : browser/themes/winstripe/browser.css => browser/themes/shared/devtools/highlighter.inc.css
Bug 838244 - Move common GCLI CSS to browser/themes/shared/. r=dcamp

--HG--
rename : browser/themes/winstripe/browser.css => browser/themes/shared/devtools/commandline.inc.css
Bug 838244 - Move common responsive design mode CSS to browser/themes/shared/. r=dcamp

--HG--
rename : browser/themes/winstripe/browser.css => browser/themes/shared/devtools/responsivedesign.inc.css
Bug 838244 - Move common social API chat CSS to browser/themes/shared/. r=jaws

--HG--
rename : browser/themes/winstripe/browser.css => browser/themes/shared/social/chat.inc.css