Fixed speed performance issue on index pages

The reason is wrong using of combination of
.includes and .references.
With .references option - same SQL loads x10 slower
Implemented dummy rake script

It populates all necessary content including:
organisations, needs, plans, content items e.t.c
Merge pull request #90 from bitzesty/dummy-script-implementation

Implemented dummy rake script
Merge pull request #91 from bitzesty/speed-performance-tweaks-on-index-pages

Fixed speed performance issue on index pages