Jetpack-Connect: Create a endpoint for storing the url where jetpack is going to be installed on a user profile

[johnHackworth]

To be able to detect when a jetpack install has been initiated from Calypso, we need to store some data in the user metas before redirecting them to their wp-admin to complete the install.

This way, once jetpack is installed and connected, we can chek if the user & site data are stored there, so we can identify that this install flow has been started from calypso and we can redirect the user back there once everything is done in wp-admin.

[johnHackworth]

solved