remove prints and add docs

Author: rerpha

README.md

@@ -1,5 +1,44 @@
 This is an attempt to port the original work https://github.com/ornl-epics/pvws to a Spring Boot-based web application. While the code is adapted to the web socket APIs of Spring Boot, most of the code is essentially unchanged.
 
+Endpoints
+=========
+
+
+`HTTP`/`HTTPS`
+------
+`/pvws`
+
+This shows a webpage with documentation and test utilities.
+
+`pvws/info`
+
+This returns JSON information with general server info.
+
+`pvws/summary`
+
+This returns JSON with a summary of all active web sockets.
+
+`pvws/socket`
+
+This returns JSON with details on all active web sockets and their PVs.
+
+`pvws/pool`
+
+This returns JSON with a listing of all PVs in the PV connection pool.
+
+`pvws/pvget`
+
+This returns a single value read from a PV in the same JSON format as a websocket message.
+
+Takes the fully qualified PV address as the `name` parameter. 
+
+`WS`/`WSS`
+----------
+
+`pvws/pv`
+
+This is the main websocket connection endpoint. See `/pvws` for information on commands. 
+
 Requirements
 ------------
 

src/main/java/org/phoebus/pvws/EpicsWebSocketServerApplication.java

@@ -68,21 +68,15 @@ public String pvget(@RequestParam String name) {
         final WebSocketPV pv = new WebSocketPV(name, null);
         String ret;
         try {
-
-            // TODO make these configurable?
             int maxAttempts = 100;
             int retryDelay = 50;
 
             VType lastValue = null;
-
             for (int i = 0; i< maxAttempts; i++) {
                 Thread.sleep(retryDelay);
                 lastValue = pv.get();
                 if (lastValue != null) break;
-                System.out.println("value is" + lastValue + "attempt no " + i);
             }
-
-            System.out.println("value is" + lastValue);
             ret = Vtype2Json.toJson(name, lastValue, null, true, true);
         } catch (final Exception ex) {
             ret = String.format("Unable to get PV value for %s - exception %s", name, ex);