db_mongodb: build proper initial result structure
utils/misc/vim: added log_error to syntax file
lib/srdb1: helper function to reallocate the index for result rows

- useful for db connectors that don't know in advance the number of rows in result
db_mongodb: proper result conversion to DB APIv1
usrloc: option to control if the null fields should be in insert statement

- ammeds previous patch 1e84aeb91cf8e7a79a9ac9091ed993be944a667b that
  introduced skipping adding the null fields
- while it was more optimal for sql backends, for non-sql that doesn't
  have a schema auto-default could break the rows
- default is to skip the null fields
db_mongodb: log query content in debug level
db_mongodb: proper handling for null values in insert
usrloc: db_ops_ruid default value to 1
core: notice message about exports dlflags made debug

- it is anyhow for developers, not admins
rtpengine: fix encoding of "direction" flag
utils/kamctl: removed unused default values

- test if DEFAULT_Q is set inside the function using it, because it has
  single place usage
dialog: check if the transaction is created for BYE closing the dialog

- if not, release the dialog, because there will be no tm callbacks
  called later to release it. In this way avoid zombie dialog.
- reported by Ovidiu Sas, FS#424
core: hanlde replacement buffer free for WS/WSS frame sending

- affected when using topoh for ws/wss traffic
core: safety check for outbound buffer

- pointer can end up being NULL if replacement fails to be built (e.g.,
  via topoh)
dialog: allocate buffer for new request after updating CSeq value

- new buffer is higher than the old one -- situation only when dialog is
  taking care of updating cseq downstream (e.g., after authentication)
htable: lookup event route for expired items at startup

- searching it by name at runtime can become an overhead for lot of
  entries in htable
evapi: update docs
evapi: use EVENT_ROUTE as route block identifier

- for event routes executed by the module
kazoo : handle target-uri properly
kazoo : missing options & corrections to publish. regenerated README