Auto-formatting code cleanup
Remove unused code
Use scaling on ImageView instead of creating a new Bitmap
Separate api url from base url
Fix getting tree photos to work with OTM2 api

Also switches from using a WebView for showing full-size photos to using an
ImageView, which should make showing multiple images simpler when it is
implemented.
Show photos after photo upload.

Fills in stub method Plot.assignNewTreePhoto
Moves the response handler into the savePhotoForPlot method so that the
_updatedPlot_ gets the new photo information added and the
TreeInfoDisplay isn't shown until the save photo handler returns
Fix lint
Merge pull request #34 from maurizi/show-tree-photos

Show tree photos