1. refactor #include on src/client/flv_muxer.h/.c, image_capture.h/.c,
   and image_convert.h/.c, according google c++ style guide.
1. refactor #include on src/client/libx264.h/.c, picture_thread.h/.c,
   and rtp_send.h/.c, according google c++ style guide;
2. convert rtp_send.h/.c file format from dos to unix using command dos2unix.
1. refactor #include on src/client/libx264.h/.c, picture_thread.h/.c,
   and rtp_send.h/.c, according google c++ style guide;