fixed documentation errors
fixed segfault in import API
updated documentation
mount default apps in /system
Fixed a wrong label for new foxx importer in web interface
Merge branch '1.4' of github.com:triAGENS/ArangoDB into 1.4
Merge branch '1.4' of https://github.com/triAGENS/ArangoDB into 1.4
fix missing script-path
added release date
issue #755: TRAVERSAL does not use strategy, order and itemOrder options
make change for issue #755 less strict
fixed wrong REST API parameter type in documentation
enhanced traversal documentation with custom expander examples
updated documentation
call global instance destructor
updated CHANGELOG
added option `--server.disable-authentication-unix-sockets`

with this option, authentication can be disabled for all requests coming
in via UNIX domain sockets, enabling clients located on the same host as
the ArangoDB server to connect without authentication.
Other connections (e.g. TCP/IP) are not affected by this option.

The default value for this option is `false`.
Note: this option is only supported on platforms that support Unix domain
sockets.

Conflicts:
	CHANGELOG
	arangod/RestServer/ArangoServer.cpp
	arangod/VocBase/vocbase-defaults.c
added SKIPLIST AQL function
return document etag in response to HTTP HEAD requests that return an HTTP 412 error
updated documentation