Use boot sector if no boot.img is found in ZIP file
Disable the forced MD5 check
Fix mkdosfs 2GB barrier
Merge "Disable the forced MD5 check" into twrp2.4
Don't reset install location when returning from multirom_mange page
Fix fail over to vfat from exfat

Fix issues with MD5 checking using chdir and leaving the working
dir in a subfolder that prevented unmounting sometimes.

Change-Id: I01a563d722f474297ed3f7a30064c3a61748ade3
Merge "Fix fail over to vfat from exfat" into twrp2.4
2.4.1.0
Merge "2.4.1.0" into twrp2.4
Merge branch 'twrp2.4' of git://github.com/TeamWin/Team-Win-Recovery-Project into nexus7
Use only std::string in TWFunc::Get_Folder_Size

* Fixes crash which could occur with too deep path because
  of too much memory allocated on stack
Merge branch 'nexus7' into mine