Plugin Api update with added functions

Change-Id: I3c48c999da240f68f4960d2e137c613b224beb5c

docs/PLUGIN_API

@@ -792,10 +792,11 @@ bool is_backlight_on(bool ignore_always_off)
     \return
     \description
 
-int kbd_input(char* buffer, int buflen)
+int kbd_input(char* buffer, int buflen, unsigned short *kbd)
     \group misc
     \param buffer
     \param buflen
+    \param *kbd
     \return 0 upon success, negative upon failure
     \description Prompt for a string to be stored in =buffer= which is of length =buflen=
 
@@ -1513,6 +1514,11 @@ void pcm_stop_recording(void)
     \conditions defined(HAVE_RECORDING)
     \description
 
+struct playlist_info *playlist_get_current(void)
+    \group playback control
+    \return pointer to current playlist
+    \description
+
 int playlist_amount(void)
     \group playback control
     \return the number of tracks in current playlist