Alliance Productions pcs2

Update the readme for 2.1.

Switch to PMF version 103.

New in 103 is correct saving of cached bsp data.
This also uses more efficient I/O for POD vectors - a single read/write of
the total memory of the vector instead of per-element reads and writes.

Update the installer script.

This updates the installer script to:
- bump the version to 2.1
- remove references to unused dlls
- write pcs2.ini to its new home
- skip pcs2.ini generation if it already exists
- write more sensible defaults for pcs2.ini
- use lzma instead of bzip2

Refactor and fix a buffer overflow in SavePOF.

Fix a bug where normals from earlier subobjects leaked into later subobjects on POF load.

Replace linear scans of normals in POF import.

Store norms once per subobject instead of once per vertex.

Use uniform initialization syntax for vector3d and matrix in DAEHandler.

Fix a bug in string_split where strings weren't stripped. Include the facet angle in hash calculations for pcs_vertex. Fix a compilation issue with gcc 4.6.

Add support for untriangulated shields and insignia.