Removed deleted files node.cpp and nodefactory.cpp from msvc project
Merge pull request #223 from caitp/cleanup-msvc

[MSVC] Delete node.cpp and nodeunit.cpp from libwebvttxx project
Include <stdlib.h> for malloc() on all platforms.

malloc.h is a nice idea, but there's a long list of platforms
where it isn't available. Considering it's just this file,
it's not worth trying to maintain a list of platform defines
to conditionalize malloc.h.

Addresses the first part of issue #227.
Merge pull request #228 from rillian/issue-227

Include <stdlib.h> for malloc() on all platforms.
Add WebVTT:: qualifier to unit types.

This will hopefully solve the trouble that some systems have been having when
trying to resolve the uint type that we are using.
Merge pull request #229 from RickEyre/issue-229

ambiguous typenames used in unit tests
Merge branch 'file-bytes' of https://github.com/ShayanZafar/webvtt into file-bytes
WEBVTT_SUCCESS instead of WEBVTT_NO_MATCH_FOUND