Fix for Issue #1
Use R.strings for static string.
Basic changes to support OTM2 map

Mostly hardcoded values to get a version up and running, ripping
out the WMS protocol map stuff with the new TMS based layers.
Start using new plot structure

OTM2 has a new plot structure, updates the data classes to represent
the new format
Ignore example prefs
Merge branch 'topic/otm2'