1Need to clobber after ICU52 roll. 2Landmines test. 3Activating MSVS 2013. 4Revert activation of MSVS 2013. 5Activating MSVS 2013 again. 6Clobber after ICU roll. 7Moar clobbering... 8Remove build/android.gypi 9Cleanup after windows ninja switch attempt. 10Switching to pinned msvs toolchain. 11Clobbering to hopefully resolve problem with mksnapshot 12Clobber after ICU roll. 13Clobber after Android NDK update. 14Clober to fix windows build problems. 15Clober again to fix windows build problems. 16