THRIFT-2779 PHP TJSONProtocol encode unicode into UCS-4LE which can't be parsed by other langurage bindings
Client: PHP
Patch: Liangliang He <lliang.he@gmail.com>

This closes #313

This closes #244
THRIFT-2884 Map does not serialize correctly for JSON protocol in Go library
Client: Go
Patch: Liangliang He <lliang.he@gmail.com>

This closes #312
THRIFT-2888: JSON generator - fixed missing include

Client: JSON
Patch: Pascal Bach

<limits> was used but not directly included