Ignores file descriptor test for windows, conceptually doesn't work on that OS
Ensure getRelationships(...) returns re-usable Iterable

Stop RelationshipIterator pretending to be an Iterable
Merge pull request #2391 from cleishm/reusable-getrels

Ensure getRelationships(...) returns a re-usable Iterable
Merge pull request #2414 from digitalstain/2.0-maint

Merge 1.9-maint into 2.0-maint
Cleanup after 1.9-maint -> 2.0-maint merge.
Can now be enabled since HTTP logging works again
Merge pull request #2418 from nawroth/1.9-2.0-merge

Docs cleanup after 1.9-maint -> 2.0-maint merge.
Wire up the UDC integration test module correctly.
Add PDF manual back, fix image sizes, upgrade CodeMirror.
Merge pull request #2432 from nawroth/pdf-and-fixes

Add PDF manual back, fix image sizes, upgrade CodeMirror.
PDF: additional path to fonts so they are always found.
Merge pull request #2412 from benbc/2.0-udc-integration-test-fixes

2.0 udc integration test fixes
Simplify SimpleTokenResolver
Fixes problem where predicates are evaluated wrongly in NOT
Small refactoring of PlanContext and surrounding classes
Introduce new DocBuilder abstraction fo bundling RecursiveDocGenerators with their DocGenerator

o Remove SimpleRecDocGen
o Remove NestedDocGen
o Rename RecursiveDocGen to NestedDocGen
Convert doc builders to be easily chainable as a flattened list of partial functions by introducing DocBuilderChain
Label support for astExpressionDocBuilder
Rename pprint.docGen => pprint.docbuilders
Add pages for forcing use of line breaks in a group