Fixes issue #868
Merge pull request #869 from japplegame/patch-1

Fix serializing Nullable!T with JsonStringSerializer with numeric T. Fixes #868.
DFixed the code: Embrace new alias syntax, kill C-style array, annihilate string concatenation, long live to DIP65
Merge pull request #872 from Geod24/dfix-code

Modernize alias syntax, remove C-style arrays (dfix).
Slight improvement to the docs
Merge pull request #875 from Geod24/freshen-docs

Slight improvement to the docs
Allows custom serializable const class/struct instances. Fixes #878

Serializer ignores custom serialization methods of const instances.
Reason is `isCustomSerializable!(const(T))` == `false`.
Upgrade OpenSSL Windows binaries to 1.0.1j.
Free up response resources manually and add HTTPServerResponse.waitForConnectionClose.

HTTPServerResponse.finalize() now frees up all references to the nested stream instances instead of relying on the finalizer to do that.
Fix handling of errors during Win32TCPConnection.connect.
Improve error messages for Win32TCPConnection.
Bump version number.
Update change log.
Fix Websocket pinging.

When vibe.d received a ping frame, it set the frame's opcode to pong and sent the pong message, it broke out of the switch and the loop as well (since the opcode is no longer ping), which left the m_currentFrame in a zeroed out state so Websocket receive complained about unexpected continuation frame and closed the connection.

Heartbeat made the connection go away - sweet irony.
Merge pull request #883 from Eximius/master

Fix Websocket pinging.
Wrapping email address inside angle brackets.

Both smtp.zoho.com and smtp.gmail.com refuse to go through if an email address is not wrapped inside angle brackets...
The problem hits when sending mail through userman. Should it be fixed in userman or in vibe, your call. 

thx.
add skip method to mongodb cursor
Merge pull request #888 from MartinNowak/mongodbCursorSkip

add skip method to mongodb cursor
Merge pull request #887 from ohenley/patch-2

Wrapping email address inside angle brackets.
Merge pull request #879 from japplegame/patch-1

Allows custom serializable const class/struct instances. Fixes #878