GUI-129
fixed regression introduced by earlier work on this
Merge pull request #941 from eucalyptus/GUI-129

GUI-129
GUI-129
trick boto to not try loading auth from metadata, which happened in some cases. fixed unit tests
Merge pull request #945 from eucalyptus/GUI-129

GUI-129
fixed problem where user updates expired password and session lacks some required variables
GUI-1258
fixed acct auth check the same way as in login
Merge pull request #959 from eucalyptus/GUI-1258

Gui 1258 fix for user-set-password bug in 4.0.2
GUI-129
apply validation setting to regular boto connection
GUI-129
added additional check so that unit tests pass
GUI-129
added cert checking flag to aws connection, added docstrings
GUI-129
updated docstrings
Merge pull request #965 from eucalyptus/GUI-129

GUI-129 apply validation setting to regular boto connection
merged from maint-4.0, resolved conflicts