Improve object and block writting performance.
[scripts] show error detail when gunicorn failed to start
v3.0.4
[scripts] fixed creating admin account in seafile-admin
test: Add the missing argument for read_index_from
Skip deprecated g_type_init() for GLib 2.36
httpserver: bm->size >= 0 is always true

    In struct _BMetadata, size is unsigned.
    No need to check if bm->size >= 0
Silence compiler warning

   silence the warning of uninitialized head_id in putcommit-v2-proc.c
   silence the warning of implicit declaration of g_open in test-seafile-fmt.c
   silence the warning of implicit declaration of g_stat in test-cdc.c
   silence the warning of uninitialized e in merge-recursive.c
[TODO]update test_write_chunk to support new version of WriteblockFunc
Use uname command to detect Darwin platform
FIX for homebrew
[FIX] Add -liconv for homebrew build