SCHEMA-270. Cleanup in TestFormattedEntityId.

Signed-off-by: Aaron Kimball <aaron@wibidata.com>
SCHEMA-251. Document KijiTable.openTableWriter() and KijiTable.openTableReader().

Signed-off-by: Aaron Kimball <aaron@wibidata.com>
DOCS-5. Document the format of the files specifying split keys.

 - in the create-table command-line tool.

Signed-off-by: Aaron Kimball <aaron@wibidata.com>
SCHEMA-106. Make CellSpec a Framework-level class.

* Hide constructor and add factory methods.
* Change CellSpec target audience to Framework.
* Update CellSpec javadoc.
* Move CellSpec from o.k.s.layout.impl to o.k.s.layout.

Signed-off-by: Aaron Kimball <aaron@wibidata.com>
SCHEMA-189. Adds KijiBufferedWriter.
SCHEMA-189. Responds to comments.