add filtration by function in addition to regex
filter potential build dirs by whether or not they contain a build
don't assume non-en-US build dirs have -l10n appended to their names (as B2G's 'multi' localization build dirs do not)
when retrieving the build status file for the latest build, make sure we get the correct file for the locale
Added authentication to is_build_dir parser
Revert "when retrieving the build status file for the latest build, make sure we get the correct file for the locale"

This reverts commit d8e1dde56fcfcb7b1ec67004f7faac5b059b013c.