Upgrade to Firefox 25.0 beta 1

Conflicts:
	theme/chrome/browser/browser.css
	theme/chrome/browser/devtools/profiler.css
	theme/chrome/browser/downloads/downloads.css
	theme/chrome/global/findBar.css
	theme/chrome/global/scrollbars.css
Upgrade to Firefox 25.0 beta 3
Upgrade to Firefox 25.0 beta 4
Merge branch 'master' into upgrade-to-25
Upgrade to Firefox 25.0 beta 6

Conflicts:
	theme/chrome/browser/newtab/newTab.css
Merge branch 'master' into upgrade-to-25
Fix downloads button's icon

Some code was moved from downloads.css to indicator.css (in upstream).
Drop white icons inside buttons in :active state

It looks like buttons in GNOME 3.10.
Change background of #identity-box.chromeUI
Add images for #identity-box.chromeUI

Oops... I forgot do "git add -A". I'm sorry. :(
Merge branch 'master' into upgrade-to-25

Conflicts:
	theme/chrome/browser/browser.css
Change close button icon in alert box
Bump version to 24.2
Merge branch 'upgrade-to-25'