Updates to the EN tasking-manager and hot-export section

This PR updates the following sections
* Tasking manager with updated content and screenshots based on the new interface (under the coordination category).  Work done by @emirhartato
* HOT export section (under the OSM data category).  @adissadis

Note:  This is part of the series of content updates we are working in connection to the module sprint of OSM-PH and OSM-Id teams.  Reference materilas are here: https://drive.google.com/?pli=1&authuser=0#folders/0B0XgzIymOZpfamZ3eXA2MHJaUWc