RC-3 minor nitpicks [4075]

[Teknojnky]

when right clicking the column headers, some column names do not appear consistent case:

File size (should be File Size)
Original date (should be Original Date)
Involved people (should be Involved People)

[rusty]

MM 3.0's already string frozen, but I've added it to the todo list for the future.

-Rusty