Add Documentation on PostgreSQL Addon

related to travis-ci/travis-build#143
update docs about clearing caches
Update to Clang 3.3
Update to Maven 3.1 and Gradle 1.8
Add Oracle JDK 8 to Java documentation
welcome to the team Hiro :)
updated Hiros animated gif
Add Skeleton for the vm update blog post
Add update on Xcode 5 / iOS 7 status
Accidentally an extra word
Add update to Mac cloud update
Added note about pushing local tags
Capitalize Travis on About pages [ci skip]
Merge pull request #395 from fgo/update-about-page

Capitalize Travis on About index pages [ci skip]
Generate blog post easier

For example:

    rake gen_blog_post\[super duper announcement\]

This will create a file in
`blog/_posts/%Y-%m-%d-super-duper-announcement.md`.

If `VISUAL` or `EDITOR` is defined, the file is opened immediately for
editing.
Merge pull request #398 from BanzaiMan/generate_blog_post

Generate blog post easier
Fix file name normalization
Prefer File.join
Add Engine Yard to deploy page

Show Engine Yard some love :heart:
Merge pull request #396 from Joshua-Anderson/more-providers

Add Engine Yard to deploy page