ACCUMULO-3205 mark jceks files as binary for RAT checks.

jceks files are detected as binary on OS X, so rat check passes locally.
The current asf run jenkins box's ubuntu version doesn't think they're binary, so rat check fails.
Merge branch '1.6'
ACCUMULO-3146 Also give the tserver a bit more heap to make sure the tserver doesn't die.
Merge branch '1.6'
ACCUMULO-3204 Remove old, unused classes
ACCUMULO-3197 Remove deprecated items from Instance

  Partially addresses ACCUMULO-3199 by removing the getConfiguration() method
  from Instance, which is prone to misuse.
ACCUMULO-3197 Remove deprecated code