Fix typos

Just fix some typos.
Fix another typo

Small typo fix.
Added .bat files for quick VS 2013 projects creation
Updated credits
Fix multiple compiler warnings and properly handle st_lwPolygon::surf for 64bit.

Changed surf member to now be a union of a intptr_t index and a lwSurface*.
Index member has to be signed to prevent overflow (by assigning a possibly negative short).
For most platforms, sizeof(int*) should be the same as sizeof(lwSurface*), though this might still be a race condition.
Fix accessing array in PrintFloat by char instead of int.
Correct initialization order of idSoundVoice_OpenAL constructor.
Merge pull request #65 from ckorn/typos

Fix typos
Merge pull request #70 from abergmeier/fix_64_bit

Handle st_lwPolygon::surf for 64bit.
Merge pull request #71 from abergmeier/fix_array_access

Fix accessing array in PrintFloat by char instead of int.
Merge pull request #72 from abergmeier/fix_constr_order

Correct initialization order of idSoundVoice_OpenAL constructor.
Formatted code with AStyle
Fix usage of trigraphs.
Properly handle format analysis

Rename ATTRIBUTE_PRINTF to
- ID_STATIC_ATTRIBUTE_PRINTF
- ID_INSTANCE_ATTRIBUTE_PRINTF
since for instance functions, this has to be taken into account, too.
Add format analysis to idLib, DeclManager and idTokenParser functions.
Add support for clang.
Add format analysis to format functions in Common.
Merge pull request #79 from abergmeier/add_format_analysis

Properly handle format analysis
Merge pull request #75 from abergmeier/fix_trigraphs

Fix usage of trigraphs.
Changed astyle-code.sh script to use the system astyle which is 2.03 on Kubuntu 13.10
Updated astyle.exe to AStyle 2.03
Force format invocations to be correct (on gcc and clang) and fix them.