* spawn child process: dev(not detached)/pro(detached) env; update version to "0.6.9.1"

Change-Id: I07e6eb20927cd60be95bade530c3a4b1c1507821
* update version to "0.6.10" for npm publish("0.6.9.1" is invalid)

Change-Id: I069a08b83876fb6267c77a93b8a4b10f943d8ee2
+ add lib/util/constants.js; modify some vars in lib/master/starter.js

Change-Id: I8e22a700f771fa3e982e28b44bfb2a8347c1dac2
change `pomelo list`

sort the result of `pomelo list` and make
it can be executed anywhere other than game server
workspace

Change-Id: Ifdb55e533b147cfe1d9c423be05c8e64fdb84d3c
sort the result of `pomelo list` based on type and id

Change-Id: I761f51f1593aeba695843f4bc3615ec1c22f6efb
sort based on serverId

Change-Id: Ibd4d8d3f0c7470ca05057b7628736f1b59352adc
fix sort bug

Change-Id: I5a0b2c0a41d85098a99c245d7171a312d4726fb2
update to 0.6.11

Change-Id: I82498132271e8aece91ab071d24da59acf59d5c4
add `countDownLatchWithTimeout`

Change-Id: I038a14d562cef12c8c4e84a2ea3e9090ca379bdd
modify the `kill` signal implementation

Change-Id: Id7767e53fd23e2bff2ad736d2ef2f0cb3158f4b4
release 0.6.12

Change-Id: Ic9dce9c5ff3f06f115b045d566a17279e0a7b222