Fixed temporary restbucks example.

- use concurrency none to workaround a concurrency issue of DB_ACCESS
- use console_application for convenience
- use default http client, to use net implementation if curl is not available.

examples/restbucksCRUD/client/client-safe.ecf

@@ -9,6 +9,7 @@
 		</file_rule>
 		<option warning="true"  void_safety="all">
 		</option>
+		<setting name="console_application" value="true"/>
 		<setting name="concurrency" value="scoop"/>
 		<library name="base" location="$ISE_LIBRARY\library\base\base-safe.ecf"/>
 		<library name="http_client" location="..\..\..\library\network\http_client\http_client-safe.ecf" readonly="false"/>

examples/restbucksCRUD/client/client.ecf

@@ -9,6 +9,7 @@
 		</file_rule>
 		<option warning="true"  void_safety="none">
 		</option>
+		<setting name="console_application" value="true"/>
 		<setting name="concurrency" value="scoop"/>
 		<library name="base" location="$ISE_LIBRARY\library\base\base.ecf"/>
 		<library name="http_client" location="..\..\..\library\network\http_client\http_client.ecf"/>

examples/restbucksCRUD/client/src/restbuck_client.e

@@ -15,13 +15,13 @@ feature {NONE} -- Initialization
 	make
 			-- Initialize `Current'.
 		local
-			h: LIBCURL_HTTP_CLIENT
+			h: DEFAULT_HTTP_CLIENT
 			sess: HTTP_CLIENT_SESSION
 			resp : detachable HTTP_CLIENT_RESPONSE
 			l_location : detachable READABLE_STRING_8
 			body : STRING
 		do
-			create h.make
+			create h
 			sess := h.new_session ("http://127.0.0.1:9090")
 -- Uncomment the following 2 lines, if you use fiddler2 web debugging tool
 --			sess.set_is_debug (True)