Pivot table, ref GH #83
Added end line
Small formatting fixes
Trivial string -> bool fix
Added key as input to pivot table function paramters
Added first go at appendN per #103
Added missing pattern match
Additional logic to construct type-correct IVectors within frame appendN
Fill inside per #105
Small cleanup to fill inside
fillMissingBetween throws error if series is not sorted
Fix typo
Implementation of #102
Additional pivotTable sugar, per #100
Address #112, GetAllSeries issue
#112 Fix syntax a bit
#113 make address int64 based
#117, #112 - make LinearIndex use ReadOnlyCollection, dictionary lookup built lazily
#52, #117 (re)implement poor man's dependency injection
Merge branch 'ak.pivottable' into mainline

* ak.pivottable:
  Additional pivotTable sugar, per #100
  Added key as input to pivot table function paramters
  Trivial string -> bool fix
  Small formatting fixes
  Added end line
  Pivot table, ref GH #83