type for mongo_count
CDRIVER-190 Check overflow - fix build
CDRIVER-193 Build and test with Visual Studio on Windows
Merge pull request #68 from fotonauts/typo_for_mongo_count

type for mongo_count
CDRIVER-194 C driver 0.8 release 
CDRIVER-192 alllow optional index name - index name should follow convention (API change)
CDRIVER-172 mongo_read_response: insufficient memory allocated for "out"
Merge remote-tracking branch 'mong-c-driver(Mongo)/master'

Conflicts:
	src/bcon.c
	src/gridfs.c
	src/mongo.c

Added support for GridFS to set the size of a file. If file is enlarged, then it will be zero filled