Bug 425227 - Orion Editor Content Assist Improvements
- Enabled contentAssist to activate a subset of providers rather than always activate all of them. This is especially useful for auto trigger.
- Added logic to support passing in information about each provider to the ContentAssist module.
- Filtering proposals will also look at the name of a proposal with overwrite set to false. This means that templates with names that are different from their proposal text will not be filtered out if the user types the proposal name instead of the proposal text.
- Reverted previous change which got the prefix from the plugins since the contentAssist.apply() method ignores that prefix anyway.

--Signed-off-by: Elijah El-Haddad <elijahe@ca.ibm.com>