#1 Online update

[Piotr Kabaciński]

Add position to menu with "Online update" option.
Fetch new files from net and change needed files on local disk.

[Piotr Kabaciński]

http://curl.haxx.se/libcurl/c/libcurl-tutorial.html#Showing

[Piotr Kabaciński]

1. save current version number for app
2. config with update url
3. download new app binaries and additional program/lib to make necessary data conversion to new version
4. backup and cleanup