back off eclipse 4.4 settings for now
cosmetic
Use same logging conf for log4j and logback
suppress authentication warning messages during tests
Add a filter stage to avro-kafka reader

Filters are pluggable via the .conf file. Filters are attached to the input kafka
topics via a .conf-specified regex pattern.

Filters are capable of:
. changing key and value types (don't have to follow the avro types directly)
. adding, combining, removing columns
. transforming data values, e.g. scaling
. rejecting out of range values

The filter stage (and any plugged in filters) is not tied to avro or
kafka specifically. Hopefully this should make filtering portable to the bulk
and csv file loaders.

Related support features
. add utility for pretty-printing avro records
. add test fixture to test stream loading avro records
. simplify type recovery in stream loading path
. improve error reporting in handling of supported cassandra column types
. bump to current version of RX (which fixes an issue connecting Subjects to Observables)
. rename to a type tagged slice of input data for a column as: TaggedSlice
temporarily disable the exporter test, pending subsequent commit
fix default logging path - (java.io.path doesn't end in /)
interim work on admin page to download .tsv files

. remove some legacy test code
start admin server a bit earlier

add commentz
start sparkle util project
remove config loading & logging configuration from ServerLaunch.
only start web socket server if api server is started.
change from CR-4779
add two counters to kafka loader
When writing to two partitions in kafka, no order is guaranteed between the partitions. Allow for this in the tests.
initial admin web page now allows downloading a .tsv file from a folder of columns
. make admin http port configurable in the .conf file
. refactoring to share code between DataService and AdminService
. some minor css styling
. add .js download function so that downloads don't navigate to a blank page on errors
. tried setting the media type of the downloaded file, to no avail
. Return 404 NotFound to attempts do download non-existent folders
. make admin interface configurable
. DRY some admin error handling code
id and auth from Realm messages at the distribution layer are no longer sent to the client

logging of RealmToServer messages new elides id and auth for privacy reasons
set mainClass for assembly as well to make it easier to launch the assembled jar
add some getting started comments