7.17-7.21 DVID连接NeuTube

注册自定义协议处理程序，新建neutube.desktop把参数“neptune://…”传给neutu.desktop，调用脚本neutu.sh，处理掉“neptune://”，取到实际图片的地址，传到neuTube里面打开

1./usr/share/applications/defaults.list
增加x-scheme-handler/neutu=neutu.desktop

2./usr/share/applications/新建neutudesktop

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[Desktop Entry]
Name = neutu
Exec = neutu.sh %u
Type = Application

3.neuTube 执行文件放到/usr/bin

4./usr/新建neutu.sh

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	STR = $1
	STR = ${STR##neutu://}
	neuTube $STR