Graph on single item movement. Support for Date values in singleline chart.
Merge branch 'develop' of https://github.com/CORE-POS/IS4C into develop

# By Andy Theuninck
# Via Andy Theuninck
* 'develop' of https://github.com/CORE-POS/IS4C:
  Graph on single item movement. Support for Date values in singleline chart.