Edit zh_cn.lang (#52)

Now it is easier to understand.And the name of skills has a closer meaning to their effect.

Fix #44

Add a config to sync stats
No need for XP to revert skill level
grpg_Health now has a name
Bump version 1.2.8

Fixed #42

Merge branch 'master' of github.com:InfinityStudio/GokiStats

# Conflicts:
#	src/main/java/net/infstudio/goki/common/StatsCommand.java

Bump to 1.2.7

simple impl, bump to 1.2.6

Merge branch 'master' of github.com:InfinityStudio/GokiStats

# Conflicts:
#	src/main/java/net/infstudio/goki/common/config/GokiConfig.java
#	src/main/java/net/infstudio/goki/common/network/packet/PacketStatAlter.java
#	src/main/java/net/infstudio/goki/common/utils/DataHelper.java

Fixed #22, some of #21

Fixed #16