Enumerate iterator types

Remove goconvey dependency and improve clarity of intention.

Conflicts:
query/gremlin/functional_test.go

Reduce the complexity of names and types in graph.{Iterator,TripleStore}

This simplifies reasoning about the tests by not hiding logic behind a
DSL.

We already have reference behaviour, so this is not necessary.

This change highlighted fairly b...

Move iterators into their own package

Also reduce API exposure and use standard library more - and fix bugs I
previously introduces in...

Yep! Replace string type with graph.Direction

This conversion is not complete as there are still uses of string
directions via the Direction.S...

Fix #21 and test the correct semantics

Remove lists

fix gremlin documentation for In and Both

this was likely a copy/paste from Out.
feel free to change the wording to fit your style.

Fix build by only testing Go >= v1.2

Rewrite receiver names

And again, remove a multitude of redundant infixes I missed previously.

Remove redundant Mongo infixes that were miseed previously.

Also remove redundant LevelDB infix missed previously.

This apparently meaningless churn improves godoc readability.

Destutter labels and files

From fix #8

Change "Javascript" to "JavaScript"

Fix the build story

make cayley go-gettable

This is smelly more than anything but I should not have missed it
previously.

Updated .gitignore to alloy cayley to be kept.

This makes almost no changes to source, but touches every almost file.

Also fixes error in grem...

Fix broken link in Overview.md

Add the path for cloning the repo