Updated regimens based on new TB card
Further changes to support TB regimens
* TB regimen changes can occur in the future
* Added date presets for TB regimens
* Display of current regimen fixed to display regimen on current date instead of last regimen
* Enhanced regimen history widget to show current change in bold
* Fixed missing arvSummary.gsp when viewing patient without open visit
Tidied up visit check in/out code. Extracted common buttons into a visitMenu fragment
Removed 'kenyaemr' references from fragment and page names to make them more re-usble
Moved page title and subtitle into messages.properties