ip2region 1.8.0 release version with lua, lua_c binding and the data …

…upgrade to version 2018/12/31

Release version 1.7.0 with data upgrade to 2018/07/26 and rust bindin…

…g, some optimization

fix the region merge txt file & re-generate the ip2region.db file

Release version 1.6 with data update to 2018/03/26 and with c# bindin…

…g actived

release version 1.5 with data update to version 2018/01/12

release version 1.4 with binding header and dbMaker update, also with…

… java maven repository

release version 1.3 with latest binary data and binding implementation

ip2region 1.2.4 release version with latest source and binary data

version 1.2.3 release version

Merge branch 'master' of https://git.oschina.net/lionsoul/ip2region