My Maps support

Hi to all users,

this will be just a short explanation of newly required permissions for all who worry about security. My Maps support was in Locus since January 2011. Unfortunately Google removed official support for My Maps in the end of February, so I removed all (four) required permissions and also ability to use My Maps in Locus, anyway part of code was still there. But community around My Maps was so big, that Google allowed to use Maps Data API for the future. There is chance that this will be removed once, but until then, we can use it.