Factored out PrettyToString trait
Restore messages.log in server.
Merge pull request #2479 from jakewins/2.1-messages.log

Restore messages.log in server.
Update SNAPSHOT version after 2.1 release.
Add upgrade notes for 2.0->2.1
Merge pull request #2480 from cleishm/2.1-upgrade-notes

2.1 upgrade notes
For server startup, don't try and recover stores unless they contain store files.
Merge pull request #2481 from jakewins/2.1-serverecovery

Improved recovery check for server
StoreRecoverer uses filesystemabstraction to check file existance.
Merge pull request #2482 from jakewins/2.1-serverecovery

StoreRecoverer uses filesystemabstraction to check file existance.
Tagging for version 2.1.1
Back to development version.
Update SNAPSHOT version in POMs after 2.1.1 release.
Split pprint package into generic and cypher specific parts

o New package: perty - generic pretty printing facility
o New package: docbuilders - cypher specific docbuilers
o Add TopLevelDocBuilder that provides convenience mixins AsPretty, AsPrettyToString
o Make relevant Cypher traits use internalDocBuilder.AsPrettyToString
Merge pull request #2496 from boggle/pp

Split pprint package and make planner artifacts use pprinting for toString
Moves CandidateListTest to the new format
Cost is now it's own type and not simply a double
Cardinality is now it's own type
Introduce CostPerRow and use it
Introduce Multiplier and have it used for selectivity and degree