1) Removed from SNFMultiSDK_Windows_3.3 the files that are created during
package creation, and added .gitignore to each subdirectory.
2) Copied SNFMultiSDK_Windows_3.3 to SNFMultiSDK_Windows_3.4.
3) Modified BuildDistribution.cmd to build SDK 3.4.
Optional ToDo: Remove all references to .svn files in BuildDistribution.cc.