Merge pull request #27 from altsai/master

v1.2 (add aurora) support, and change default version for autoflash to v1.2
Merge pull request #28 from altsai/master

Fix Typo... my bad
added v1.2.0 and changed the seqence of flash mode.
removed the pwd of wget when using command mode.
fixed the HTTP_PWD issue.
Added support of Desktop B2G 26 and 27
fix mac problem....