Add observation icon to graph (instead if circle)
Correlated Charts API changes and UI fixes.
Merge branch 'feature/angular' of codebasehq.com:playgen/celar/datacon into feature/angular
Merge branch 'feature/visualisations' into feature/angular
Merge branch 'feature/visualisations' into feature/angular
Merge branch 'feature/visualisations' into feature/angular
Merge branch 'feature/visualisations' into feature/angular
Fix javascript error when there's no observations
Merge branch 'feature/visualisations' into feature/angular
Move addObsv and clearObsv to next to the other obsv functions