textproc/dikt: Update 2l3 -> 2s1 (0.20161228)

Port changes:

• Add PORTEPOCH and change version to 0.20161228 because upstream versions changed backwards
• Change qt4 -> qt5, kde4 -> kde5
• Add LICENSE/LICENSE_FILE
• Add to USE_KDE and USE_QT
• Change WWW to https

PR: 228029
Submitted by: goran.tal@gmail.com (maintainer)