Blender Git Loki

1) Change the way "Align mode" is accessed in the UI: It's now a global
toggle for all pivot modes. The 2 new pivot modes have been removed
from the popup.

Instead, a new toggle button is added to the 3d view header.

2) Grab cursor mode. Cursor can be grabbed (and constrained to axis, grid,
etc. while moving) like any other object. If no object is selected,
GKEY alone grabs the cursor, otherwise pressing CKEY while in GKEY mode
moves the cursor.