Support for TrueType Collections...

[sebras]

I attempted to use ttfdump on a .ttc and it didn't work. So I looked up the spec and implemented it. To make the output look neat I decided to indent everything, so the indentation cleanup is done in a separate commit, consistently using tabs.

Oh, and let's see if github will allow you to do something intelligent with this pull request like doing a fast forward merge without a silly merge commit. :)

/ Sebastian