turned object-logics into components;
isabelle makeall: operate on all components with IsaMakefile, not just hardwired "logics";

 src/Pure

 src/FOL

 src/HOL

 src/ZF

 src/CCL

 src/CTT

 src/Cube

 src/FOLP

 src/HOLCF

 src/LCF

 src/Sequents