Dolphin new-rev-string Git changelog:
* remove hash from rev description
* minor cleanup of make_scmrev.h.js
* make sure the jscript is actually executed at build time
* make_scmrev.h.js needs to compare the full file instead of just the HEAD hash.
remove refs to deleted files from Common project
* Make the jscript for writing out scmrev.h work on windows.
Add scmrev.h to .gitignore
Remove some SubWCRev.exe and it's template