Support for advanced Netty options

Fixes #2747
Merge pull request #3188 from jroper/netty-advanced-options

Support for advanced Netty options
Managed stream & advanced aggregation
Merge pull request #3160 from cchantep/anorm-managed-stream

Anorm advanced aggregation
Get the latest bug fixes from sbt-native-packager with 0.7.3
Merge pull request #3199 from benmccann/packager-073

Get the latest bug fixes from sbt-native-packager with 0.7.3
Unified column resolution by name or alias
Upgrade to sbt-eclipse 2.5.0
Merge pull request #3204 from benmccann/eclipse250

Upgrade to sbt-eclipse 2.5.0
Merge pull request #3203 from cchantep/anorm-colget

Unified column resolution by name or alias
add note maximum number of fileds limitation for a single tupple or mapping

I guess if there is written only about 22 limitation, newbies will be confused.
Take in gmethvin's suggestion
Merge pull request #3208 from diceit/form-map-limitation-squash

Form map limitation squash