spark tests compile
updated test metadata to match new code
fix indent that bothered me a lot
fix: depr warning on test
small cleanup
changed "lazy val"s to "def"s in Extent

this was messing up metadata serialization
Up scala to 2.10.4 to avoid sbt error on spark
fix: TmsTilingSpec
fix: Context to adjust for new TileLayout constructor
TmsTilingConvert removed as unused

GT tiling ID isn’t really a thing that we use
Up scaliest to 2.2.0
cleaned up deprecated ShouldMatchers in spark test

Conflicts:
	spark/src/test/scala/geotrellis/spark/tiling/TmsTilingConvertSpec.scala
	spark/src/test/scala/geotrellis/spark/tiling/TmsTilingSpec.scala
Merge pull request #1 from echeipesh/fix/refactor-spark

Fix Spark Tests