Merge pull request #2243 from billthornton/bug/gzip-filter-vary-header

Append the value of the Vary header instead of overwriting it in the Gzip filter.
Merge pull request #2187 from fernandoacorreia/doc-async

Clarify documentation on Action asynchronicity
Merge pull request #2225 from fernandoacorreia/fix-typo-given

Fix typos in comments
Merge pull request #2223 from dhruvbhatia/master

Allow Evolution/Error messages to overflow horizontally
Typo in Cache.scala ScalaDoc
update scala version setting in play.boot.properties from 2.10.3-RC3 to 2.10.3
update Dependencies:
+ specs 2.3.4 -> 2.3.7
+ akka 2.2.0 -> 2.2.3
+ commons-codec 1.7 -> 1.9. See http://commons.apache.org/proper/commons-codec/changes-report.html
+ joda-time 2.2 -> 2.3. Full compatible. See http://www.joda.org/joda-time/upgradeto230.html, http://upstream-tracker.org/java/versions/joda-time.html
+ joda-convert 1.3.1 -> 1.5. See http://www.joda.org/joda-convert/changes-report.html
+ jackson 2.2.2 -> 2.3.1 (core) & 2.3.0 (databind, annotations). See https://groups.google.com/forum/#!topic/jackson-dev/3kBEjIBvqYw
+ async-http-client 1.7.21 -> 1.7.23
Indexed column parsing
Clarify renaming default cookie name and setting & removing cookies
Anorm row specs
Merge pull request #2256 from cchantep/anorm-rowspecs

Anorm row specs #2
Merge pull request #2255 from calvinkrishy/issue1934

Clarify renaming default cookie name and setting & removing cookies
Merge pull request #2253 from cchantep/anorm-indexcol

Parsing column by position
fold method has missing implicit parameter

The fold method in the documentation has a missing implicit parameter without which the Iteratees in the documentation cannot be compiled.
Merge pull request #2250 from giabao/update-deps

Update deps
remove unnecessary exec ctx prep from Iteratee.flatMap

commit 2b276d24 implemented the lines:
```
case Step.Done(a, Input.Empty) => executeIteratee(f(a))(ec /* still on same thread; let executeIteratee do preparation */ )
case Step.Done(a, e) => executeIteratee(f(a))(ec.prepare /* still on same thread; let executeIteratee do preparation */ ).pureFlatFold {
```
However, the `ec.prepare` is incongruous with the adjacent comment, and the preparation is definitely not required as the preparation is indeed handled by `executeIteratee`.
Further fixes with respect to issue #2256
Merge pull request #2237 from jroper/enhancer-analysis-update

Ensure byte code enhancer updates incremental compiler analysis
Merge pull request #2247 from fernandoacorreia/cache-orelse

Typo in Cache.scala ScalaDoc
Etag => ETag

http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.19