Recreate links omitted from Niantic data

See #192
Rewritten tile request calculation
Merge pull request #195 from goodsoft/patch-1

Recreate links omitted from Niantic data
bump version number for fixed coordinate calculations
change zoom levels for portal level display to match stock intel site - this seems to be enforced by the backend now
fix #199
bump version number in preperation for next release
Merge branch 'master' into highlighter