Relax gps at start

1.  The first 2 points are accepted regardless, and accuracy is ignored for
the first minute of recording.  Afterwards, it must be a value of 19 or
better.
2.  The map was waiting to locate until the first GPS location was recieved.
This was changed to locate immediately upon creation.  It seems to be
using the last known location recorded by the google api.
3. Moved strings to resource file, and renamed variables.
Fixes #117