fedora image updates

rebuilt 20/heisenbug/latest
new branch: 21
rebuilt rawhide (now moved to 22 since 21 branch)

	modified:   library/fedora
Merge pull request #110 from lsm5/fedora-updates

fedora image updates
Update python:2 to include "pip" by default
Update ruby to have onbuild triggers as a separate image
Update nginx to include perl support
Update debian: 7.6, CVE-2014-0475, and Acquire::GzipIndexes
Update ubuntu images to 17-Jul-2014
Update ubuntu-debootstrap
Jenkins LTS based official image - latest points to current Jenkins long term support release
Add gcc image
Wordpress update to allow reverse-proxy ssl
Update "java:7" to be more version-specific and include "curl" and "wget", and add "java:6" and "java:8" images
Merge pull request #122 from infosiftr/java

Update "java:7" to be more version-specific and include "curl" and "wget", and add "java:6" and "java:8" images
Merge pull request #121 from infosiftr/wordpress

Wordpress update to allow reverse-proxy ssl
Merge pull request #119 from infosiftr/gcc

Add gcc image
Merge pull request #117 from tianon/ubuntu-debootstrap

Update ubuntu-debootstrap
Merge pull request #116 from tianon/ubuntu

Update ubuntu images to 17-Jul-2014
Merge pull request #115 from tianon/debian

Update debian: 7.6, CVE-2014-0475, and Acquire::GzipIndexes
Merge pull request #114 from infosiftr/nginx

Update nginx to include perl support
Merge pull request #112 from infosiftr/python2-pip

Update python:2 to include "pip" by default