eliminate the contribution of the force of gravity.
add EN language file,but didn't translate all the words.
change name
家人-添加成员-添加姓名、性别、出生日期、关系等功能。还有一些问题，周末继续排虫。
Merge branch 'master' of https://github.com/NeutronStarCO/Neutron.git

Conflicts:
	AndroidManifest.xml
	res/values/strings.xml