create a pub resolver class, for use in resolving package: imports
Improved error reporting (fixed #1285)
Merge pull request #1286 from devoncarew/master

fix an analysis issue
Added type checking
Merge pull request #1287 from dinhviethoa/1285-webstore-error-reporting

Improved webstore error reporting
Changing test timeout from 15 to 30
Merge pull request #1288 from dinhviethoa/test-timeout

Changing test timeout from 15 to 30
merge to master
Merge pull request #1278 from devoncarew/devoncarew_pub_resolver

create a pub resolver class, for use in resolving package: imports