problem: popup covers up markers; solution: popup anchor defined on markers
district popup table contents subgrouped, given groupheaders, and formatted on popupopen
Merge originhtc/master
bugfix in district popup
Merge forkedhtc/master

Conflicts:
	js/popup.js
new cd4marker
Merge branch 'master' of https://github.com/jedi-Knight/HTC-Map
Fixed the icon size and overlay of art,cd4 and pmtct icons. before, icons added last appeared on top. now bigger icons will be behind small icons.