support not unsync a repo when not found on server
Update version to 3.1.5.
[build] remove unused ossp-uuid depenedency for osx
Merge pull request #172 from haiwen/bugfix_osx_no_uuid

[build] remove unused ossp-uuid depenedency for osx
using double instead of float for scalefactor
Merge pull request #174 from haiwen/fix_type_of_scale_factor

using double instead of float for scalefactor
support edit account host address