Updated Download list.
- updated gecko version of pvt builds
- added wasabi master build of pvt builds
- updated gecko version of b2gdesktop
Merge pull request #117 from askeing/updated_download_lists

Updated Download List for PVT and Desktop builds.
move auth part right before http request
Merge branch 'master' of https://github.com/Mozilla-TWQA/B2G-flash-tool into auth-refactor
Merge pull request #119 from zapion/auth-refactor

Auth refactor