Removed tika integration, added sharder interface + basic md5 based implementation + sharding solr doc writer
Added -solrclassic in version number to allow separate CI jobs
Since we won't support complex sharding configuration we'll just use shard int args and go for a simpler config mechanism
Better validation of connection params, removed index schema references, fix solr connection usage
Allow tweaking number of solr connections + added LilySharder
Updated javadoc
There's a rat in the kitchen
Merge branch 'solrclassic' into multitable

Conflicts:
	hbase-indexer-all/pom.xml
	hbase-indexer-cli/pom.xml
	hbase-indexer-common/pom.xml
	hbase-indexer-demo/pom.xml
	hbase-indexer-dist/pom.xml
	hbase-indexer-engine/pom.xml
	hbase-indexer-engine/src/main/java/com/ngdata/hbaseindexer/indexer/Indexer.java
	hbase-indexer-model/pom.xml
	hbase-indexer-morphlines/pom.xml
	hbase-indexer-mr/pom.xml
	hbase-indexer-mr/src/main/java/com/ngdata/hbaseindexer/mr/BufferedSolrInputDocumentWriter.java
	hbase-indexer-mr/src/main/java/com/ngdata/hbaseindexer/mr/HBaseIndexingOptions.java
	hbase-indexer-server/pom.xml
	hbase-sep/hbase-sep-api/pom.xml
	hbase-sep/hbase-sep-demo/pom.xml
	hbase-sep/hbase-sep-impl-0.94/pom.xml
	hbase-sep/hbase-sep-impl-0.95/pom.xml
	hbase-sep/hbase-sep-impl/pom.xml
	hbase-sep/hbase-sep-tools/pom.xml
	hbase-sep/pom.xml
	pom.xml