-fix bug in cache for atlas import/export

-fix some menus
-fixed bug in out transition curves
-detect and remove file:/// in collada
-remove multiscript for now
-remove dependencies on mouse in OS, moved to Input
-avoid fscache from screwing up (fix might make it slower, but it works)
-funcref was missing, it's there now

core/io/file_access_pack.cpp

@@ -172,7 +172,6 @@ bool PackedSourcePCK::try_open_pack(const String& p_path) {
 		uint64_t size = f->get_64();
 		uint8_t md5[16];
 		f->get_buffer(md5,16);
-
 		PackedData::get_singleton()->add_path(p_path, path, ofs, size, md5,this);
 	};