Grants:TPS/Support/Program Name

In order to better comply with US tax regulations that affect the Wikimedia Foundation, we must change the name of the "Participation Grants Program" to "Participation Support Program" to more consistently reflect the nature of these transactions as reimbursements rather than grants. This will allow WMF and WMDE to continue to administer this program without imposing additional burdensome technical requirements on recipients of these funds, while still keeping us in compliance with US regulations. We will not be changing this program substantially or procedurally: we are only naming it more accurately. To read more about this program, visit Participation:Support.