FLUID-4923, FLUID-5062: removed uportal integration demo.
FLUID-4923: added test suit for nested reorderers.
Merge remote-tracking branch 'yura/FLUID-4923'

* yura/FLUID-4923:
  FLUID-4923: added test suit for nested reorderers.
  FLUID-4923, FLUID-5062: removed uportal integration demo.