Fixed VPCS path setting
Fixed VPCS base_script_file setting
Fixed VPCS base_script_file setting
Added base64 transmission of script_file
Merge branch 'master' of https://github.com/joebowen/gns3-gui into joebowen-master

Conflicts:
	gns3/modules/vpcs/ui/vpcs_preferences_page_ui.py
Merge branch 'joebowen-master'