ICMS-397
create a WidgetMap bundle + create several services to handle widgetMap logic + rename ACTION_REPLACE by ACTION_OVERWRITE + refactor WidgetMapBuilder logic
ICMS-397
when create a widget, position it by reference to the previous widget
ICMS-397
fix position references
ICMS-397
Merge branch 'fix/VICMS-397-widgetmap-positionreference' of git://github.com/Victoire/victoire into fix/VICMS-397-widgetmap-positionreference

* 'fix/VICMS-397-widgetmap-positionreference' of git://github.com/Victoire/victoire:
  ICMS-397 fix position references
  ICMS-397 when create a widget, position it by reference to the previous widget
  ICMS-397 create a WidgetMap bundle + create several services to handle widgetMap logic + rename ACTION_REPLACE by ACTION_OVERWRITE + refactor WidgetMapBuilder logic

e commit.
ICMS-397
WIP updatePosition
ICMS-397
create behat tests for widget positions
ICMS-397
fiw positions for simple page without template
ICMS-397
good positions for a page with widgets in it's template
ICMS-397
compatibility with drag&drop feature
ICMS-397
Merge branch 'master' into fix/VICMS-397-widgetmap-positionreference

* master:
  some anoying space
  cleanup (remove sample files)
Merge pull request #1 from Victoire/fix/VICMS-397-widgetmap-positionreference

Fix/vicms 397 widgetmap positionreference