Use better qualified global names

Make it clear what's related to the packaged project.

src/include/build.sh

     #       rpmstuff, hence -f hack for gzip
     #
     local version=$(get_version)
-    local dirname=$MKIT_PKGNAME-$version
+    local dirname=$MKIT_PROJ_PKGNAME-$version
     mkdir -p "$dirname"
     ini values "lists:dist" | xargs -I DIST_ITEM cp -R DIST_ITEM "$dirname"
     sed -i -e "s/^VERSION = .*/VERSION = $version/" "$dirname/config.mk"

src/include/mkit.sh

 
 MKIT_INI=${MKIT_INI:-mkit.ini}
 MKIT_INI_EXPAND=2
-MKIT_PKGNAME=$(ini 1value "ENV:PKGNAME")
-MKIT_PROJNAME=$(ini 1value "ENV:PROJNAME")
+MKIT_PROJ_NAME=$(ini 1value "ENV:PROJNAME")
+MKIT_PROJ_PKGNAME=$(ini 1value "ENV:PKGNAME")
 MKIT_DEFAULT_MODE="644"
 
 mkit_init() {

src/include/release.sh

     set -e
     debug_var newtag
     $MKIT_DRY && return
-    git tag -m "$MKIT_PROJNAME $newtag - $CODENAME" "$newtag"
+    git tag -m "$MKIT_PROJ_NAME $newtag - $CODENAME" "$newtag"
     git branch -f "$RELDST" "$newtag"
 }