Update to 9.3.3

- Open PTT serial port O_NONBLOCK so /dev/tty* can be used.
- If a video device has no formats, do not add to camera list.
- Add /index.html to local docURL so help will open in browser.

From the changelog:
20190418 QSSTV 9.3.3
        * fixed api documentation generation

20190418 QSSTV 9.3.2
        * complete rewrite of the FTP interfaces. They now run in a seperate
          thread
        * removed Hybrid notify config. All hybrid configurations are in one
          tab: Hybrid
        * size of recorded wav files was internally set to 0, fixed.
        * tx audio to wav file was output in mono with half the samples
          -> fixed
        * scaling of images in sstv tx mode -> fixed
        * show image with template when loading new image ->fixed
        * callsign was not set/send in DRM tx
        * new FFT implementation
        * compression in DRM now based on size in stead of ratio
        * fix error in reedsolomon decode when no erasures found
        * repeater functions implemented
        * fixed bug in AVT24-AVT90-AVT94
        * removed use VIS option in SSTV (now when a VIS code is detected,
          the mode is restricted to that VIS mode)
        * added confirmation options for delete files and program exit in
          gui configuration
        * more testing on raspberry Pi 3 model B. (compilation and
          execution OK)
        * added PKTLSB, PKTUSB and PKTFM in frequency config modulation
        * added passband to frequency settings
        * minor bug fixes

1 files changed, 12 insertions, 0 deletions

diff --git a/comms/qsstv/files/patch-qsstv_videocapt_cameradialog.cpp b/comms/qsstv/files/patch-qsstv_videocapt_cameradialog.cpp
new file mode 100644
index 000000000000..17cd1e7072e3
--- /dev/null
+++ b/comms/qsstv/files/patch-qsstv_videocapt_cameradialog.cpp
@@ -0,0 +1,12 @@
+--- qsstv/videocapt/cameradialog.cpp.orig	2019-04-19 07:07:41 UTC
++++ qsstv/videocapt/cameradialog.cpp
+@@ -220,7 +220,8 @@ void cameraDialog::getCameraInfo(QString
+       formats=getFormatList(fd);
+       if(ok)
+         {
+-          cameraList.append(scameraDevice(camDev,(const char *)cap.card,(const char *)cap.driver,(const char *)cap.bus_info,formats));
++          if (formats.count() > 0)
++            cameraList.append(scameraDevice(camDev,(const char *)cap.card,(const char *)cap.driver,(const char *)cap.bus_info,formats));
+         }
+       v4l2_close(fd);
+     }