add softtimer to the core, begin framework for static modules and reduces calls…

add softtimer to the core, begin framework for static modules and reduces calls to gettimeofday for timestamps

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5786 d0543943-73ff-0310-b7d9-9358b9ac24b2

conf/switch.conf.xml

@@ -2,6 +2,8 @@
   <settings>
     <!--Most channels to allow at once -->
     <param name="max-sessions" value="1000"/>
+    <!--Most channels to create per second -->
+    <param name="sessions-per-second" value="30"/>
     <!--Try to catch any crashes that can be recoverable (in the context of a call)-->
     <param name="crash-protection" value="false"/>
     <!--RTP port range -->