Avoid requiring byteswapping functions

Instead of byteswapping a 32 bit word and writing it out as a
whole (which could even possibly lead to crashes due to
incorrect alignment on some platforms), write it out explicitly
in the intended byte order.

This avoids having to set a define indicating the endianness.
Make the deblocking handling endian independent

This avoids having to set a define indicating the endianness.

This doesn't incur any significant measurable slowdown.
Take the missed WelsDecoderI4x4LumaPredH_sse2 function into use

Previously this function was never used.
Remove an MSVC resource editor state file

This file contains the local UI state of the resource editor,
and should not be committed to version control.

A similar file was removed earlier in c61b040, but this one
was missed.
Fix building for win64 with assembly disabled
Merge pull request #272 from mstorsjo/enable-missed-asm-func

Take the missed WelsDecoderI4x4LumaPredH_sse2 function into use
Merge pull request #275 from mstorsjo/fix-win64-noasm-build

Fix building for win64 with assembly disabled
Merge pull request #273 from mstorsjo/remove-editor-state-file

Remove an MSVC resource editor state file
Move declarations of functions in expand_picture.asm into a header in common
Move declarations of functions in mc_chroma/luma.asm into a header in common
Use bool_t instead of BOOL_T

One bool typedef is already more than enough, two is too many.
Use bool instead of bool_t

bool is one of the built in, standard types in C++, there's no need
for a typedef for it.
Use void instead of void_t

There's really no reason for adding a typedef for void.
Use char instead of str_t
Use the C++ constants true/false instead of defining our own

TRUE/FALSE has intentionally been left in use for the few
platform specific APIs that define these constants themselves
and expect them to be used, for consistency.
Merge pull request #258 from mstorsjo/endian-cleanup

Avoid endian-specific code
Merge pull request #271 from mstorsjo/merge-asm-headers

Merge declarations of shared asm functions into the comon library
Merge pull request #274 from mstorsjo/typedef-cleanup

Remove typedefs for standard C++ types
Merge remote-tracking branch 'upstream/master' into travis.osx