Done necessary changes to UI related php code for upgrading Slim version to 2.4.0.
necessary changes were done to upgrade API to the latest Slim version (2.4.0)
Merge branch 'slim-upgrade' into develop

Conflicts:
	api/lib/Middleware.php
	ui/RouteHandlers/OrgRouteHandler.class.php
	ui/RouteHandlers/ProjectRouteHandler.class.php
	ui/RouteHandlers/StaticRouteHandeler.php
	ui/RouteHandlers/TaskRouteHandler.class.php
	ui/lib/Middleware.class.php
Merge branch 'develop' of gitlab.trommons.org:solas-match into develop
orgProcessRequest is not callable/does not exist.