add hook_exists method to Crabgrass::Hook::Helper
add hook_exists method to Crabgrass::Hook::Helper

riseuplabs/crabgrass,riseuplabs/crabgrass,riseuplabs/crabgrass,riseuplabs/crabgrass,riseuplabs/crabgrass,riseuplabs/crabgrass,riseuplabs/crabgrass