fix illegal instruction use
Add a runtime option for controlling frame skipping
Update ReadMe for new Windows builds
Update msvc options from VS projects.
Merge pull request #147 from volvet/illegal_assembly_fix

fix illegal instruction use
Merge pull request #161 from ethanhugg/msvc_flags

Update msvc options from VS projects.
Merge pull request #160 from ethanhugg/windows_readme

Update ReadMe for new Windows builds
Allow yasm to be used instead of nasm.

http://www.nasm.us/doc/nasmdoc3.html#section-3.4.1 says a zero should
follow $ in numeric constants, but yasm complains about it when not
followed.
Merge pull request #162 from Vproject/yasm

Allow yasm to be used instead of nasm.
Cleanup include dir list in Makefile
Cleanup mktargets.py

1.Remove semicolons
2.close file
Merge pull request #163 from varunbpatil/makefile_cleanup

Cleanup include dir list in Makefile
Merge pull request #164 from varunbpatil/mktargets_cleanup

Cleanup mktargets.py
Don't execute mktargets.py if cannot cd into correct directory
Removed unused headers in test/
Merge pull request #169 from varunbpatil/mktargets_sh

Don't execute mktargets.py if cannot cd into correct directory
Merge pull request #170 from varunbpatil/unused_headers

Removed unused headers in test/
Merge pull request #159 from mstorsjo/frameskip-option

Add a runtime option for controlling frame skipping
Mention the issues about the rate control if frame skipping is disabled

As requested by Volvet in the review of the frame skipping option.
Merge pull request #173 from mstorsjo/readme-rc-issue

Mention the issues about the rate control if frame skipping is disabled