+ [OE-4020] updated admin screen for drugs to support the tallman and aliases field to ensure that correct values displayed for new entered drugs
+ made drug and username search case insensitive in admin for user convenience.
+ [OE-4002] provide means to render letter immediately when added (to prevent long running output call for large numbers of letter
[OE-3885] Load flot from assets.
[OE-3885] Add id attribute to episode summary items to allow linking to them.
Merge branch 'release/1.6' into develop