Merge pull request #2670 from richdougherty/empty-anycontent-speedup

Speed up AnyContentAsEmpty parsing for GET and HEAD requests
Merge pull request #2666 from fernandoacorreia/context-doc

Add note about thread pool configuration
Merge pull request #2663 from mikamix/fix_javascript_compiler_warnings

Fix JavascriptCompiler warnings
Merge pull request #2657 from pvlugter/java8-tests

Fix WS certificate generator for java 8
Merge pull request #2660 from mkurz/SecurityHeaderFix

Removed colon from Content-Security-Policy directive
Merge pull request #2659 from mikamix/fix_template_compiler_warnings

Fix ScalaTemplateCompiler warnings
Merge pull request #2658 from mikamix/fix_play_settings_warnings

Fix PlaySettings warnings
Removed X-CONTENT-SECURITY-POLICY header
Added Play feature tour
Merge pull request #2661 from jroper/feature-tour

Added Play feature tour
Switch to twirl template compiler
Ensure generated secret is stable in dev mode
Remove repeated "the"
Continuation frame handling for WebSockets

Also implemented backpressure.
Merge pull request #2683 from jroper/websocket-text-continuations

Continuation frame handling for WebSockets
Override chooseEngineClientAlias and chooseEngineServerAlias to do something useful.
Add more debugging.
Documenting what's new about Anorm in Play 2.3
Optimize private Iteratees' contruction of Step objects

For Iteratees where we already know the Step, we can extend
Step to avoid creating a separate object. This avoids object
creations and also avoids needing a lazy val. This change
only affects Play's private iteratee implementations. There
is no public API change.
Rename templates/README to README.md
Rename api.mvc.Controller implicits fix #2605

This modification reduces the chances of application code accidentally shadowing
the implicits leading to confusing errors