Fix case issue with name and symbol lookup.
Return first subdivision and subdivision code.
Merge branch 'return-first-subdivision-and-code' of https://github.com/fastestforward/geoip2

Conflicts:
	geoip2.c
Merge branch 'fix-case-issues' of https://github.com/fastestforward/geoip2

Conflicts:
	geoip2.gemspec