Fixed slot logging
Added helper methods (contains and remove)
Added helper methods to add <script> and <style> blocks to a slot
Fix to not append hash or query to data URI encoded resource
Added new "mergeInline" property for bundles to control how inline content is added to output page
Added helper methods for maintaining the optimizer cache
Improved optimizer code to make it more resilient to failures
Upped version to 2.4.20
Upgraded version of rapido
Upped version to 2.4.21
jshint fix
Added time-to-live for page optimizer cache
Added timeout support for async fragments
Upped version to 2.4.22
Merge branch 'master' of https://github.com/raptorjs/raptorjs