Merge pull request #18 from szilardhuber/master

Read CSV data in nodejs sample app.
picking up downstream changes
picking up latest proto/ and gtest/ changes
synchronizing proto submodule
Merge pull request #19 from dbeck/master

fixing all build issues on linux by pulling downstream changes
remove empty placeholders
Merge pull request #20 from dbeck/master

remove empty placeholders
Merge pull request #21 from szilardhuber/master

Refactored a little and added handling of limit in query.
Merge pull request #22 from szilardhuber/master

Continued refactoring + added scourcemaps.
Merge pull request #23 from szilardhuber/master

Handling NULL values and field type request.
Merge pull request #24 from szilardhuber/master

Magic numbers and strings are placed to config. loglevel module is used ...
Sending data in chunks.
Merge branch 'master' of github.com:szilardhuber/virtdb-apps