Moved all content distribution feeds to work with a single base service
- ContentDistributionServiceBase
Moved syndication feeds to work with inheritance and enabled caching.
Remove comment
Centralize the Echos location to enable future buffering.
Move get feed to work with kExternalErrors instead of die.
Conflicts:
	api_v3/web/getFeed.php
Added die error, and print the message when it's given
Conflicts:
	alpha/apps/kaltura/lib/KExternalErrors.class.php
Updated cache support in both content distribution and syndication feeds
Feed Refactoring: fill keep scheduling in the context.
Feed refactor: Fixed an issue with the caching.
Feed refactoring: Local memory usage
Feed refactoring: Fixed bugs in Double Click Service
Feed refactoring : double click fixes
Feed refactoring : Some more double click fixes
Feed refactoring: Get the right value from the cache.
Merge pull request #181 from kaltura/IX-9.2.0-feed-refactoring-2

Ix 9.2.0 feed refactoring 2