[COOK-2293] Reload attributes

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
Update CHANGELOG format
Fix README format
Version bump to v2.0.4
Bump devodd release
[COOK-3395] Make sure to compile the version of passenger on the node attrribute

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-3486] Make PassengerRuby configurable via node attributes

Signed-off-by: Seth Vargo <sethvargo@gmail.com>