Added error message when mixing not-string and string keys in persistent_table objects
Silent fault tolerance when non reduce jobs
Added .dir-locals.el for emacs
Updated dir-locals
Updated persistent table to allow lock and unlock methods
Updated travis
Updated travis to compile luamongo with legacy-0.9.0 version of mongo-cxx-driver
Updated travis to compile luamongo with legacy-0.9.0 version of mongo-cxx-driver
Updated travis to compile luamongo with legacy-0.9.0 version of mongo-cxx-driver
Merge pull request #12 from pakozm/devel

Devel pull request
Updated persistent table comments
Update make_sharded.lua
Solved problem with tasks without combiner
Updated cmd in make_sharded script
Merged with master!
Added tuple implementation, for safe key serialization
Converted emitted values to tuples
Moved April-ANN to APRIL-ANN
Merge pull request #13 from pakozm/devel

Devel
Added pairs and ipairs metamethods to tuple