Make time optional as spec

v1.0.1

Bump version

Remove dependency mmmagic

From now we do not inspect content type for file and remote. This is due to installation issue with mmmagic. Please make sure you protect yourself if you use those functions:

tcxParseFile
tcxParseURL
gpxParseFile
gpxParseURL

Upgrade mmmagic to 0.3.13

v0.1.0

Bump version