minimal bootable environment

Clone this repo:
  1. 7178e29 Merge "Revert "Base: Delete ostream<< with std::string*"" by Treehugger Robot · 5 hours ago master
  2. 2db3823 Revert "Base: Delete ostream<< with std::string*" by Andreas Gampe · 8 hours ago
  3. 0bb8dcb Merge "bootstat: Add reboot,userrequested" by Treehugger Robot · 12 hours ago
  4. eb00b1f Merge "Revert "Remove comments and code about ro.boot.slot"" by Tom Cherry · 14 hours ago
  5. c5f5fd4 Revert "Remove comments and code about ro.boot.slot" by Tom Cherry · 14 hours ago
  6. 9033bf5 bootstat: Add reboot,userrequested by Mark Salyzyn · 14 hours ago
  7. c7750dc Merge "libion: Adapt to new ION interface" by Treehugger Robot · 31 hours ago
  8. e3526a5 Merge "Add derive_gid flag for mounting sdcardfs" by Treehugger Robot · 31 hours ago
  9. 6567303 Merge "Enable libdemangle and libunwindstack on host bionic" by Treehugger Robot · 33 hours ago
  10. c849088 Merge "libion: add 4.12+ kernel headers for forward compatibility" by Treehugger Robot · 33 hours ago
  11. b7c1185 Add derive_gid flag for mounting sdcardfs by Daniel Rosenberg · 2 weeks ago
  12. 2dd3b6e Merge "Base: Delete ostream<< with std::string*" by Treehugger Robot · 34 hours ago
  13. 3b55389 Merge changes I45fbac4a,Ie390459d by Treehugger Robot · 36 hours ago
  14. 0f04867 Enable libdemangle and libunwindstack on host bionic by Dan Willemsen · 2 days ago
  15. 7dcf076 Merge "Remove comments and code about ro.boot.slot" by Tom Cherry · 2 days ago
  16. 90e9c1f Merge "libmetricslogger: Lookup tag ID by name at runtime." by Treehugger Robot · 2 days ago
  17. a16e437 bootstat: validate last kmsg and bootreason content more carefully by Mark Salyzyn · 2 days ago
  18. 14b1e6d bootstat: clang-format rebase by Mark Salyzyn · 4 days ago
  19. 4ef5011 Base: Delete ostream<< with std::string* by Andreas Gampe · 2 days ago
  20. f4ec2c5 Remove comments and code about ro.boot.slot by Tom Cherry · 2 days ago