Specify mp3 file support on "make features"

Signed-off-by: falkTX <falktx@falktx.com>

Makefile.print.mk

@@ -199,6 +199,7 @@ ifeq ($(HAVE_SNDFILE),true)
 else
 	@printf -- "Basic: $(ANS_NO) $(mS)libsndfile missing$(mE)\n"
 endif
+	@printf -- "MP3:   $(ANS_YES)\n"
 ifeq ($(HAVE_FFMPEG),true)
 	@printf -- "Extra: $(ANS_YES)\n"
 else

resources/ui/carla_about.ui

@@ -101,9 +101,18 @@
          <property name="text">
           <string>Extended licensing here</string>
          </property>
+         <property name="textFormat">
+          <enum>Qt::RichText</enum>
+         </property>
          <property name="wordWrap">
           <bool>true</bool>
          </property>
+         <property name="margin">
+          <number>1</number>
+         </property>
+         <property name="indent">
+          <number>1</number>
+         </property>
         </widget>
        </item>
       </layout>