Merge in ECC and FF-DHE. Fixes #79. Fixes #73. Fixes #71. Fixes #78. Fixes #57
Require the named_groups extension. Update changelog
Merge pull request #82 from ekr/Merge_in_ECC_and_FF-DHE

Merge in ECC and FF-DHE. Fixes #79. Fixes #73. Fixes #71. Fixes #78. Fix...