beesh: allow change of PKGVERSION , PKGEXTRAVERSION and PKGREVISION

When we start with a versionless file, we need to be able to change
the versions. We will add other tests for completeness in the following
patches

src/beesh.sh.in

@@ -779,21 +779,6 @@ function extract_new_package_variables() {
         fi
         print_info "${COLOR_YELLOW}PKGEXTRANAME changed from '${oPKGEXTRANAME}' to '${PKGEXTRANAME}'"
     fi
-    if [ "${PKGVERSION}" != "${oPKGVERSION}" ] ; then
-        print_error "${BEE##*/}: Invalid change in PKGVERSION(${PKGVERSION}) detected. Changing PKGVERSION is not supported."
-        exit 1
-    fi
-    if [ "${PKGEXTRAVERSION}" != "${oPKGEXTRAVERSION}" ] ; then
-        if [ ! -z "${oPKGEXTRAVERSION}" -a  "${PKGEXTRAVERSION}" != "${oPKGEXTRAVERSION}_${PKGEXTRAVERSION#${oPKGEXTRAVERSION}_}" ] ; then
-            print_error "${BEE##*/}: Invalid change in PKGEXTRAVERSION(${PKGEXTRAVERSION}) detected. Only appending '_something' is supported."
-            exit 1
-        fi
-        print_info "${COLOR_YELLOW}PKGEXTRAVERSION changed from '${oPKGEXTRAVERSION}' to '${PKGEXTRAVERSION}'"
-    fi
-    if [ "${PKGREVISION}" != "${oPKGREVISION}" ] ; then
-        print_error "${BEE##*/}: Invalid change in PKGREVISION(${PKGREVISION}) detected. Changing PKGREVISION is not supported."
-        exit 1
-    fi
 
     PKGFULLPKG=${PKGFULLNAME}-${PKGFULLVERSION}-${PKGREVISION}