Reorder key-values in meta header to match other clients

[sethmlarson]

In the getClientMeta function the order of key-value pairs is es, jv, hl, t. However the header value should be ordered with es, jv, and t as the first 3 keys.

• Current: es=X,jv=X,hl=2,t=X,...
• Proposed: es=X,jv=X,t=X,hl=2,...