v1.5.6 Fixed push notification history reading only for current platform

Add platform to every http request headers. On ios it is set to platform=ios and on Android it is set to platform=android.
to solve the push notification system that will only read the history of the platform itself.

1.5.3

1.5.3

1.5.1

1.5.1

v.1.4.19

1.4.19

v.1.4.18

Upgrade dependency

v. 1.4.17

1.4.17

v.1.4.15

1.4.15

v.1.4.14

1.4.14

1.4.13 Fixed DateUtils bug

1.4.13

1.4.12

1.4.12