Makes changes for rc5.
Adds missing licenses accrording to Rat audit tool.
Adds my gpg public key to KEYS.
Adds script to sign artifacts.
Moves artifact-sign.sh script under "release" folder.
Renames "rat" ant target into more descriptive "audit-licenses".
Fix to https://issues.apache.org/jira/browse/WAVE-415
WAVE-311 Applies full text search with Solr patch by Frank Ren https://reviews.apache.org/r/16322 but without SolrRobot.
WAVE-311 Updates to allow user data wavelets into the Solr index.
WAVE-311 Refactors some search related code.
WAVE-311 Refactors some more, ensures Solr search result include user data wavelet.
WAVE-311 Updates Snippets.collatetextForOps to accept custom function to modify the result on new lines.
WAVE-311 Refactored title construction by adding getWavelet method to WaveMap and moving the code into base class.
WAVE-311 Refactors the Solr search related classes some more.
Fixes NPE.
WAVE-311 Allows to download the Solr dependency via ant and run with run-solr.sh script.
WAVE-311 Makes Solr base url and executor configurable.
WAVE-311 WAVE-371 Ensures that search providers always include the user data wavelet for genenerating the digest.
WAVE-311 Updates solr scripts.
Refactors some Solr related code.