Merge pull request #297 from ahilles107/update_version

update version marks to 4.2 RC
Clarifies the upgrade process
Grammar error
Clarification
Merge pull request #300 from ahilles107/update_version

improve upgrade
More clarifications
Adds the Permissions bit
Small fix
Added extra info
Merge pull request #299 from terwey/upgrade_desc

Upgrade desc
Merge pull request #301 from ahilles107/update_version

fix rendition table with upgrade
Updates the unzip command
Merge pull request #302 from terwey/upgrade_desc

Updates the unzip command
remove unused files
Merge pull request #303 from ahilles107/master

remove unused files
Fixes CS-4699
Removes the /usr/bin/env php from the Console file. This caused a Session error oddly enough.
Merge pull request #304 from terwey/CS-4699

Fixes CS-4699
update quetzal
Update UPGRADE.md
Merge pull request #306 from terwey/master

Upgrade tutorial