Move RELSRC and RELDST parameters to mkit.ini

mkit.ini

     name = Mkit
     pkgname = mkit
     tagline = simple install helper
+    relsrc = master
+    reldst = last
 
 [lists]
 

src/include/release.sh

              || die "cannot do this outside git repo"
             ;;
         norelbr)
+            local relsrc=$(ini 1value project:relsrc)
             __git_info curbranch \
-              | grep -qFx "$RELSRC" \
-             || die "you are not on RELSRC branch: $RELSRC"
+              | grep -qFx "$relsrc" \
+             || die "you are not on release source branch: $relsrc"
             ;;
         dirty)
             git diff --shortstat 2>/dev/null \
     debug_var newtag
     $MKIT_DRY && return
     git tag -m "$MKIT_PROJ_NAME $newtag - $CODENAME" "$newtag"
-    git branch -f "$RELDST" "$newtag"
+    git branch -f "$(ini 1value project:reldst)" "$newtag"
 }
 
 __git_msg_vbump() {