More PRI/SIP gateway stuff

**ATTENTION** you will need to libs/jrtplib/.complete ; make installall 
to get it to compile on existing builds as the jrtplib required changes.

Added teletone DTMF to mod_wanpipe and rfc2933 DTMF to mod_exosip
Added temporary poor man's daemon
freeswitch -nc > /var/log/freeswitch.log

then it will await a HUP




git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@659 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_types.h

@@ -44,6 +44,8 @@ extern "C" {
 #define SWITCH_RECCOMMENDED_BUFFER_SIZE 131072
 #define SWITCH_MAX_CODECS 30
 #define SWITCH_MAX_STATE_HANDLERS 30
+#define SWITCH_TRUE 1
+#define SWITCH_FALSE 0
 
 /*!
   \enum switch_ivr_option_t

src/include/switch_utils.h

@@ -44,6 +44,8 @@ extern "C" {
 
 #include <switch.h>
 
+
+
 #ifndef snprintf
 #define snprintf apr_snprintf
 #endif
@@ -51,6 +53,34 @@ extern "C" {
 #define vsnprintf apr_vsnprintf
 #endif
 
+
+/*!
+  \brief Evaluate the truthfullness of a string expression
+  \param expr a string expression
+  \return true or false 
+*/
+#define switch_true(expr)\
+(expr && ( !strcasecmp(expr, "yes") ||\
+!strcasecmp(expr, "on") ||\
+!strcasecmp(expr, "true") ||\
+atoi(expr))) ? SWITCH_TRUE : SWITCH_FALSE
+
+
+
+/*!
+  \brief Return the RFC2833 character based on an event id
+  \param event the event id to convert
+  \return the character represented by the event or null for an invalid event
+*/
+SWITCH_DECLARE(char) switch_rfc2833_to_char(int event);
+
+/*!
+  \brief Return the RFC2833 event based on an key character
+  \param the charecter to encode
+  \return the event id for the specified character or -1 on an invalid input
+*/
+SWITCH_DECLARE(int) switch_char_to_rfc2833(char key);
+
 /*!
   \brief Duplicate a string 
 */