documentation: improve readability; line length, indentation, highlighting.
related pull requests: #1036 #1038 #1043
Merge pull request #1044 from crate/l/improve-docu-readability

documentation: improve readability; line length, indentation, highlighti...
added IndexReferenceInfo to hav a notion if index columns

and forbid match on dynamic references
update changes
Merge pull request #1046 from crate/m/match_fix

M/match fix
add bulkArgs to SQLRequest
Added benchmark test to compare bulk inserts with multiple insert statements
check bulk_args for mixed types
use BulkShardProcessor instead of TransportBulkAction
support inserts using bulk arguments
create XContent instead of Maps in InsertAnalyzer
set autoCreateIndices value correctly in ESBulkIndexTask
fixup! create XContent instead of Maps in InsertAnalyzer