Tweak insight tracking for `search` command

- Tracking should be consistent with `info` command; tracking should register upon user calling the command, not when the command is completed
- Vocabulary should be consistent with other tracking - if only tracking upon calling the command, should use the present tense of the verb without -"ed"

This is an improvement for tracking and reporting consistency, please see https://github.com/bower/bower/issues/1164#issuecomment-39385297