lipify v0.4

Fixes

• NUL terminate received data from api.ipify.org before parsing
• Proper IPv4/IPv6 support, fixes problem reported by Guillaume Robier

lipify v0.3

Fix for issue #1, added proper IP address validation to prevent trailing garbage.

lipify v0.2

Initial release, with small test program, everything in plain old C.

• Supports dynamic .so and static .a library
• make install supports DESTDIR= and prefix= environment variables