Version 0.4.48
* bumped version to 0.4.48
cont'd code review with clang++ and -Weverything (module types, partly)
cont'd code review with clang++ and -Weverything (module interpreter, partly)
cont'd code review with clang++ and -Weverything (module compiler)
cont'd code review with clang++ and -Weverything (module parser)
cont'd code review with clang++ and -Weverything (module imageoutput)
cont'd code review with clang++ and -Weverything (module control)
cont'd code review with clang++ and -Weverything (module common)
