Bumps default SDK in build-osx-bundle.sh to 10.7 (newer Xcode doesn't
include 10.6).
Fixes using xml2-config from SDK when needed.
Fixes more linker warnings about symbol visibility by compiling libs
with fvisibility=hidden.
Updates some comments in the build scripts.
This was SVN commit r13172.
Adds build script for OS X dependencies, fixes#1112. OS X builds no
longer use MacPorts/Homebrew, check BuildInstructions.
Adds build script for OS X bundles. Adds OS X icon and DMG background
image.
Moves bundled libraries to libraries/source.
Moves most headers and precompiled static libs for Windows to
libraries/win32.
Updates Premake and packaging scripts to support this.
This was SVN commit r13148.