Removed unused variable
Fixed wrong data type which caused some compile time warnings. Fixes #365.
GTK3 migration of remmina_key_chooser, fixes #365
GTK3 migration of remmina_plugin_manager, fixes #365
Fix wrong data types in function calls, fixes #365
GTK3 and VTE fixes for remmina_ssh_plugin, fixes #365
GTK3 migration for remmina_string_list, fixes #365
GTK3 migration for remmina_public, fixes #365
Merge pull request #409 from giox069/next

GTK3 fixes