version bump to 0.3.0.rc1 [ci skip]
version bump to 0.3.0.rc1 [ci skip]

ReserveBar1/spree_essential_cms,ReserveBar1/spree_essential_cms,slingerbv/spree_essential_cms,hakhanhphuc/spree_essential_cms,citrus/spree_essential_cms,citrus/spree_essential_cms,hakhanhphuc/spree_essential_cms,slingerbv/spree_essential_cms,hakhanhphuc/spree_essential_cms,ReserveBar1/spree_essential_cms