fix bug on selection of upgrade bz and fix caching bug with bugzilla
Merge pull request #133 from thescouser89/errata_rpmdiff

fix bug on selection of upgrade bz and fix caching bug with bugzilla
remove caching for now
Merge pull request #134 from thescouser89/errata_rpmdiff

remove caching for now
add better name of package when guessing when getting an nvr

The better name guessing is actually a direct translation of the brew.parse
python method.

FIXME: This method is actually duplicated from package.rb . Remove duplication
in another time.
Merge pull request #135 from thescouser89/name_guess_fix

add better name of package when guessing when getting an nvr
remove useless gems from Gemfile
os_arch refactoring
Merge branch 'os_arch' of github.com:liweinan/ett into os_arch