Merge pull request #155 from zapion/v2.0

workable version
Updated return value of get_available_packages_from_url()
- from {PACKAGE_NAME: BASENAME, ...} to {PACKAGE_NAME, DOWNLOAD_URL, ...}
Merge pull request #157 from askeing/v2.0

Updated return value of get_available_packages_from_url()
chmod of flash_pvt.py.
fix the logger issue of downloader.
Merge remote-tracking branch 'mozilla/v2.0' into v2.0
Merge pull request #156 from zapion/v2.0

Error message label for auth page
Update the downloader and path_parser
Merge pull request #158 from askeing/v2.0

chmod of flash_pvt.py.