Merge pull request #2 from bosth/master

Add FrequencyStats and EquivalentNumField scripts
ensured hex grid covers the whole layer extent
Merge pull request #3 from anitagraser/patch-1

ensured hex grid covers the whole layer extent
added new algorithm and cleaned up
fixed script to create lists
fixed models and bumped version of all elements to 2.6

This is to prepare for the first release of the on-line collection functionality in Processing
Fix duplicate FrequencyStats algorithm.