check and warning for import errors added
version dump und news update
improvement for zips data import
renaming vignettes
first version for rmongodb cheat sheet
Merge pull request #33 from dselivanov/master

Added high-level function for aggregation pipeline
refactoring mongo.distinct and mongo.parse.ns and adding RUnit tests
version dump and news update
new mongo.aggregation added
refactoring mongo.aggregation and adding tests
new cheat sheet version
new cheat sheet version
finale version of rmongodb cheat sheet
version dump for CRAN submission
fixing package build issues in case of missing mongoDB
small typo fixes
new development version number
valgrind check doku added
valgrind test added
code improvement