Added shapereader documentation. Location may not be final, but content is.
Review actions
Merge pull request #179 from pelson/shapereader_docs

Added a shapereader tutorial
imost actions made
Merge remote-tracking branch 'upstream/v0.5.x'
Alternative way to support multidimensional arrays in transform_points.
Added tests and supported multidimensional return values.
merged Phils changes + minor changes
minor edits