Remove spurious warn present since at least 0.14
Merge pull request #27 from jimbrowne/spurious-warn

Remove spurious warn present since at least 0.14
Merge branch 'master', remote-tracking branch 'upstream/master'
Follow Amazon's signing rules more strictly

Amazon is very particular about how to generate signed requests, and
HTTP::Request::Common can interfere with that.  Generate the query
string ourselves to ensure it is signed properly.
add stringification overloads to errors
Merge pull request #29 from haarg/errors-overload

add stringification overloads to errors
Merge pull request #28 from haarg/fix-signing

Follow Amazon's signing rules more strictly
Merge remote-tracking branch 'upstream/master'