Closes #146

Closes #150

Implementation in headers is bad.  Separate out the implementation and
file scoped statics into a .c and pull the necessary function definitions
out into the associated -private.h

Closes #116

bson_concat is a more straight forward memcpy than using bson_value with
iteration.

Closes #147

Renamed the field, and fixed the failure check.
There can only ever be one WriteConcernError, which is a bson object
containing the code (int), errInfo (object) and errmsg (cstring),
so there is no arrays to merge.

Closes #153

Falls back to extracting the subject from the cert for backwards
compatibility

Closes #145

gridfs file seek had incorrect handling for detecting page migration.
Fixed a potential segfault and the underlying conditional.

Fixes #155

fixes #148

Typo in doc for _mongoc_cluster_sendv.

Closes #130

Closes #142

Closes #141

Closes #140

Was interesting seeing tracing leaving a function it didn't enter

Closes #123

error LNK2001: unresolved external symbol mongoc_rand_add	libmongoc.def

Closes #119

mongoc-database.c(687): error C2275: 'bson_string_t' : illegal use of this type as an expression

Closes #117

making public DEFAULT_SOCKET_TIMEOUT_MSEC and changing the name to match MONGOC_DEFAULT_CONNECTTIMEOUTMS

Closes #95

Adding a warning (with the error message) when can't connect to a host.
And adding the host name into the error message when failed.

Closes #91

Closes #71

Added in validation for wiredtiger storage options to createCollection.

Closes #127

Closes #126

Ensure that the socket we've selected has been read from within a
second.  If it hasn't, check if it's closed by polling for readability
and if that works, MSG_PEEK'ing a single byte.  If we get eof, or an
error, we can assume it's broken.  This lets us avoid a large class of
transient network failures.

Closes #136

Closes #125

Closes #132

Closes #133

Closes #134

int64_t cursor_ids and adding some new functions to the external abi

These can be retrieved by calling currentOp, but its impossible to map
them to specific cursor. We can just as well expose the id rather then
having the user guessing

Closes #122

A good samaritan should clean after himself using
mongoc_cursor_destroy(cursor), but you may not always have the cursor instance.
You are just trying to cleanup after a broken process, and all you got is
the cursorid, which you retrieved from db.currentOp()

Closes #121

The batch size needs to be tweakable between getmores

Added:
uint32_t mongoc_cursor_get_batch_size (const mongoc_cursor_t *cursor)
void mongoc_cursor_set_batch_size (mongoc_cursor_t *cursor, uint32_t batch_size)

Closes #120

Signed-off-by: Jason Carey (hanumantmk) <jcarey@argv.me>