Added test for LOAD CSV handling different types of line termination
Add better error message for some problems
Merge remote-tracking branch 'upstream/2.0-maint'
Renamed GDBSettings.cypher_file_access to allow_file_urls
Merge pull request #2069 from davidegrohmann/2.1-loadcsv-separators

Add support for FIELDTERMINATOR in LOAD CSV
Fix LoadCSVPipe ask for a CSVIterator with the specified custom field terminator
Add reference documentation for Load CSV
Merge pull request #2070 from boggle/2.1-pc-prettifier

2.1 Prettifier support for USING PERIODIC COMMIT
Merge pull request #2071 from davidegrohmann/2.1-loadcsv-docs-and-field-terminator-fix

Load CSV reference docs
Throttles cluster transition logging.
Manual typos
More information in the case of an invalid offset
Improve the messaging for LOAD CSV + USING PERIODIC COMMIT failures
Fix assertions
Fix handling of null property values for nodes in CREATE, MERGE, and SET

o Create ignores
o Merge throws
o Set removes
Improve error messages for unsupported property types
Add rewriter to solve arithmetic expressions using literals
Add rewriter for naming pattern elements
Add rewriter for normalizing match predicates
Refactor tests to use CypherFunSuite instead of FlatSpec