add dockerfile generator

rpc generation fix (zeromicro#184)

* reactor alert

* optimize

* add test case

* update the target directory in case proto contains option

* fix missing comments and format code

reactor rpc (zeromicro#179)

* reactor rpc generation

* update flag

* update command

* update command

* update unit test

* delete test file

* optimize code

* update doc

* update gen pb

* rename target dir

* update mysql data type convert rule

* add done flag

* optimize req/reply parameter

* optimize req/reply parameter

* remove waste code

* remove duplicate parameter

* format code

* format code

* optimize naming

* reactor rpcv2 to rpc

* remove new line

* format code

* rename underline to snake

* reactor getParentPackage

* remove debug log

* reactor background

goctl add stdin flag (zeromicro#170)

* add stdin flag to use stdin receive api doc and use stdout output formatted result

* optimize code and output error through stderr

* fix mistake

* add dir parameter legality verify

make tests faster

update breaker doc

avoid bigint converted into float64 when unmarshaling

add more tests

update shorturl doc

goreportcard not working, remove it temporarily