added "static" to the initialize function
Merge branch 'master' into development
ignore php storm project files
rename xxxProductIDs methods to xxxProductNumbers, because for campaigns FF needs numbers instead IDs
fix tracking response
add changelog for version 1.0.1
Merge branch 'release'

# By Rudolf Batt (4) and alessandro.bognetti (1)
* release:
  add changelog for version 1.0.1
  fix tracking response
  rename xxxProductIDs methods to xxxProductNumbers, because for campaigns FF needs numbers instead IDs
  ignore php storm project files
  added "static" to the initialize function