Add debugging for merging node histograms
Improve formatting based on number (decimal or not)
Use cached histograms and merge new values
Make master stable
Merge only changes into cached histograms to prevent flickering
Merge branch 'master' of git@github.com:tgrk/statman_elli.git into merging_histograms

Conflicts:
	priv/docroot/controllers.js
Merge pull request #8 from tgrk/master

Merging of histograms to prevent flickering