Bump version to 0.15.3
Bump version to 0.15.3

jimporter/mkdocs,lukfor/mkdocs,williamjmorenor/mkdocs,jimporter/mkdocs,peter1000/mkdocs,d0ugal/mkdocs,peter1000/mkdocs,mkdocs/mkdocs,mkdocs/mkdocs,pjbull/mkdocs,williamjmorenor/mkdocs,peter1000/mkdocs,lukfor/mkdocs,waylan/mkdocs,waylan/mkdocs,pjbull/mkdocs,jimporter/mkdocs,mkdocs/mkdocs,lukfor/mkdocs,waylan/mkdocs,d0ugal/mkdocs,d0ugal/mkdocs,williamjmorenor/mkdocs,pjbull/mkdocs