Add logical.commands file
Add stubs for logical commands
Implement ws_builtin_cmd_lnot()
Add implementation for ws_builtin_cmd_land()
Add implementation for ws_builtin_cmd_lnand()
Add implementation for ws_builtin_cmd_lor()
Add implementation for ws_builtin_cmd_lnor()
Add implementation for ws_builtin_cmd_lxor()
Merge pull request #274 from matthiasbeyer/add-logical_commands

Logical commands
Extend statement initializer by the command name
Merge pull request #295 from neithernut/mod-command-statement_constructor

Extend statement initializer by the command name
Outsource build of module "action"
Outsource linking of module "command"
Outsource build of module "compositor"
Outsource build of module "connection"
Outsource build of module "input"
Outsource build of module "logger"
Outsource build of module "objects"
Outsource build of module "serialize"
Outsource build of module "util"