Ubiquity should expose search and bookmark keywords

So far many of us have used search and bookmark keywords to get some of the functionality of Ubiquity, namely parametrized searches. All these keywords should be exposed through Ubiquity, so that I don't have to remember which commands to issue through Ubiquity and which through the AwsomeBar.

And maybe more radically: just merge Ubiquity and the AwsomeBar. Instead of Ctrl-Space we say Ctrl-L, done. Entering a URL is a special kind of Ubiquity command, one where the verb is implied. Same for bookmark keywords.