Top bar projects button links to active projects

Resolved #145. The top bar link now adds "stage:active" to the query
leaving out completed/dropped from initial results.
Only active related projects for contact note field

Fixed #150 where the active project select dropdown for the note field
while on a contact was showing completed and dropped projects. Now all
  related projects must be in an active stage.
Added project red, yellow, green flags
Icons for project flags

Added foundation-icons v3 for project flags. Using play-circle for
clear, play for green, pause for yellow, stop for red.
Migrate task to add project.flag

Closes #138. Added rake task to migrate project db to add "clear" flag
to all existing entries. Also remaps and indexes projects.
Project flags