Add write buffer for tar writes

update fuse to 2.9.2

catch return from unlink so that we don't print error messages when things work
Change-Id: I1115039a0fa5d9d73f78ef1abd79755d7ffd9d96
Change popen in twrpTar to __popen

Change-Id: I921b0647b1f63dd348b059eb630ebe9bf5ec570d
Merge remote-tracking branch 'upstream/twrp2.4' into jb-wip