Add page for download builder
added dodge and greyhound images for the resources page
resources.html: replaced two sites that a no longer using jqm with dodge and greyhound
adjusted size for dodge and greyhound images
New homepage.
Added 1.4 Supported Platforms
Removed old pages.
Removed unused images.
Text correction on the homepage.
Updated and cleaned up download page.
Updated all downloads page.
Removed jQuery Mobile from page titles.
Added missing 1.4 pre-release zip files.
Added upgrade guide pages.
Added note that new roadmap is coming soon.
Created Demos page.
Added a note to the 1.4 upgrade guide.
Replaced devices image for homepage.
Minor change in cross-platform tex.
jquerymobile.com: added changelog for 1.4 and removed intermediate ones