compiler and style warnings eliminated.
TODO: 3 failing tests

[info] - Validation - more than one file group in directory *** FAILED ***
[info]   false was not true (ShapefileReaderSpec.scala:49)

[info] - points geocode properly with cache loaded from local shapefile *** FAILED ***
[info]   500 did not equal 200 (GeospaceServletSpec.scala:92)
[info] - points geocode properly with cache loaded from soda fountain mock *** FAILED ***
[info]   500 did not equal 200 (GeospaceServletSpec.scala:132)