Added constants for app modes
Added constants for app modes

anoam/limb,limb-php-framework/limb-cms,AlexMarlo/limb,limb-php-framework/limb,AlexMarlo/limb,AlexMarlo/limb,limb-php-framework/limb,anoam/limb,limb-php-framework/limb,anoam/limb,limb-php-framework/limb-cms,limb-php-framework/limb,anoam/limb,anoam/limb,limb-php-framework/limb,anoam/limb