EEGLAB does not respect proxy options set in MATLAB

[janbrogger]

Description

EEGLAB does not respect the proxy setting in Matlab 2018b on Windows. A quick reproduction of the error can be done using:
plugin_urlread('http://sccn.ucsd.edu/wiki/Plugin_list_import')

Requirements:

1. Be on a network that requires an external proxy
2. Be on a Windows platform.
3. You have set a web proxy server in the Matlab preferences.

#### Steps to Reproduce

1. Clone EEGLAB:
   git clone https://github.com/sccn/eeglab.git C:\TEMP\eeglab
2. Start matlab 2018
3. Check matlab version
   version
4. Check that web proxy settings are not blank:
   s = settings;
s.matlab.web.ProxyHost
s.matlab.web.ProxyPort
5. Change current directory
   cd C:\TEMP\eeglab
6. Start EEGLAB:
   eeglab
   See error message below
7. Verify that EEGLAB preferences have update checking enabled
   pop_editoptions()
8. Turn off update checking by deselecting "If set, check for new version of EEGLAB at startup" in the dialog.
9. Close EEGLAB window.
10. Start EEGLAB
    eeglab
    NOTE: EEGLAB startup is no longer delayed by unsuccessful update checking
11. In the EEGLAB menu, choose File/memory and other options or run command:
    plugin_extract(''import'', [])
12. Observe this takes a long time (see below).
13. For a simple test, just run:
    plugin_urlread('http://sccn.ucsd.edu/wiki/Plugin_list_import')

#### Expected behavior:

1. MATLAB does not take a long time to startup because if fails on update checking

2.plugin_extract() does not take a long time and is succcessful. #### Actual behavior:

1. EEGLAB startup takes a long time because it fails on update checking
2. plugin_extract() takes a long time and is not succcessful. The error message is:

Retreiving URL with import extensions...
Retreiving download statistics...
Cannot connect to the Internet to retrieve statistics for extensions
Error using plugin_getweb (line 32)
Cannot connect to the Internet to retrieve extension list

Error in plugin_extract (line 15)
    plugin = plugin_getweb(type, pluginlist, 'newlist')

#### Comment

Versions

OS version	[Windows 10]
Matlab version	[ 9.5.0.1067069 (R2018b) Update 4]
EEGLAB version	[14.1.1]