nodogsplash: Version 4.4.0 release (#540)

nodogsplash: Version 4.4.0 release (#540)

Maintainer: Moritz Warning <moritzwarning@web.de>

Compiled and tested on snapshot SDK mips_24kc and arm_cortex-a7_neon-vfpv4

This release adds significant new functionality yet is compatible with the previous version.

From the changelog:
  * Add Client Network Zone detection supporting local interfaces and 802.11s mesh [bluewavenet]
  * Add client zone and user agent to FAS/PreAuth logs [bluewavenet]
  * Add requirements for retrieving https remote image for login page [bluewavenet]
  * Add htmlentity encode and decode to preauth scripts [bluewavenet]
  * Implement unescape callback for MHD allowing url special characters to be used in login forms [bluewavenet]
  * Create get_client_interface library utility [bluewavenet]
  * Create unescape library utility [bluewavenet]
  * Update demo-preauth, login-option and fas scripts [bluewavenet]
  * Update fwhook restart - do not use ndsctl to check if nds is running [bluewavenet]
  * Update config files [bluewavenet]
  * Fix - allow comma space to be used in PreAuth variables [bluewavenet]
  * Fix - final redirect for fas-aes [bluewavenet]
  * Fix - ignore trusted mac if invalid [bluewavenet]
  * Documentation updates [bluewavenet]

Signed-off-by: Rob White <rob@blue-wave.net>