[Ubuntu 18.04] Can't locate globalvariables.pl

OS: Ubuntu 18.04
Follow Instruction: [UBUNTU_16_04](https://github.com/CSAILVision/LabelMeAnnotationTool/blob/master/UBUNTU_16_04.md)

I tried solution from https://github.com/CSAILVision/LabelMeAnnotationTool/issues/69 and https://github.com/CSAILVision/LabelMeAnnotationTool/issues/1:

Setting $LM_HOME by input in shell
```
export LM_HOME=/var/www/html/LabelMeAnnotationTool
```

But it doesn't work, the tool.html still shows **_"Fatal: there are problems with fetch_image.cgi"_** when loading.

I have tried ubuntu 16 docker and it works well in my local server. I'm not sure whether there is special configure for ubuntu 18. It will be really appreciate, if you could help me to solve this problem.

---
Error Log:

[Mon Oct 28 16:48:05.529643 2019] [cgi:error] [pid 6417] [client 127.0.0.1:42144] AH01215: **Can't locate globalvariables.pl** in @INC (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.26.1 /usr/local/share/perl/5.26.1 /usr/lib/x86_64-linux-gnu/perl5/5.26 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.26 /usr/share/perl/5.26 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base) at /var/www/html/LabelMeAnnotationTool/annotationTools/perl/**write_logfile.cgi** line 2.: /var/www/html/LabelMeAnnotationTool/annotationTools/perl/write_logfile.cgi, referer: http://127.0.0.1/LabelMeAnnotationTool/tool.html?collection=LabelMe&mode=i&folder=null&image=null
[Mon Oct 28 16:48:05.529709 2019] [cgi:error] [pid 6417] [client 127.0.0.1:42144] End of script output before headers: write_logfile.cgi, referer: http://127.0.0.1/LabelMeAnnotationTool/tool.html?collection=LabelMe&mode=i&folder=null&image=null
[Mon Oct 28 16:48:05.529900 2019] [cgi:error] [pid 6386] [client 127.0.0.1:42146] AH01215: **Can't locate globalvariables.pl** in @INC (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.26.1 /usr/local/share/perl/5.26.1 /usr/lib/x86_64-linux-gnu/perl5/5.26 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.26 /usr/share/perl/5.26 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base) at /var/www/html/LabelMeAnnotationTool/annotationTools/perl/write_logfile.cgi line 2.: /var/www/html/LabelMeAnnotationTool/annotationTools/perl/write_logfile.cgi, referer: http://127.0.0.1/LabelMeAnnotationTool/tool.html?collection=LabelMe&mode=i&folder=null&image=null
[Mon Oct 28 16:48:05.529952 2019] [cgi:error] [pid 6386] [client 127.0.0.1:42146] End of script output before headers: write_logfile.cgi, referer: http://127.0.0.1/LabelMeAnnotationTool/tool.html?collection=LabelMe&mode=i&folder=null&image=null

Ubuntu 16.04 のセットアップ手順と annotationTools/perl/write_logfile.cgi から始め、Apache CGI 環境を報告されている @INC パスおよび fetch_image.cgi の失敗と比較します。Ubuntu 18.04 でエラーを再現します。globalvariables.pl が見つかり、致命的な CGI エラーなしでツールが読み込まれれば完了です。

索引モデルが issue の本文から書いたものです。