generate hints for each context
meetme hint is spelled in camelcase
fix bug in hint builder

forgot to pass in a list to the hint generator. Also forgot
to include the bsfilter adaptor
check if a hint was generated using the extension

Scenario :
- Given I have a func key with a user destination who has a SIP line
- Given I have a func key with a custom destination that has the same
  extension as the user
- Then I only want the hint for the SIP line to appear

This is how SCCP devices can monitor hints on other resources