translate Paths to valid dot-separated MongoDB collection names (Fixes #139)
add type information to RenderedTrees (Fixes #106)

use a single case class for RenderedTrees (but with alias constructors Terminal and NonTerminal)

nodeTypes for Workflow trees

nodeTypes for LogicalPlan (and annotated forms)

nodeType for None

nodeTypes for AST annotations

handle the umpteen AST node types in RenderTree instance
improve handling of nested paths
move much of the path wrangling into mongodb.filesystem
simpler path<->collection name translation
escape '$' in collection names
Merge pull request #146 from sellout/minor-fixes

Parenthesized expressions don’t parse correctly.
cleanup
simplify result type for ls()
Merge pull request #144 from mossprescott/139-nested-paths

translate Paths to valid dot-separated MongoDB collection names (Fixes #139)
workaround for Travis' download issues
Merge pull request #145 from mossprescott/106-rendered-tree-type-info

add type information to RenderedTrees (Fixes #106)
update scalaz dependencies for 7.1.0 release
Merge pull request #149 from mossprescott/minor

update scalaz dependencies for 7.1.0 release
tests for API with stubbed backend (Fixes #143)
fix handling of missing paths; normalize paths in backend configuration
Merge pull request #150 from mossprescott/143-api-tests

Basic tests for the API (metadata/ and data/)