Implement URL connection type

[paidem]

URL connection type would have

1. URL
2. Indication of default target (App tab, New browser window, New browser tab)

explore possibility to tunnel connection via browser, e.g.
/tunnelhttp/?target=https://www.google.com

this would make it possible:

• to give access via web to resources only accessible from guacozy, server (or internal proxy server)
• to hide address info (e.g. /tunnelhttp// could make a connection to URL specified in Connection with UUID, but prohibit specifying arbitraty URLs and hide real URL from end user

[RHuehne]

+1

[rauschgiftengel]

+1