Split pkgs required by xbps-base-chroot, as it was made in Fedora.

- Added an additional shell func to add full (build/run), build
  or run time dependencies to packages. An optional third parameter
  can be used to specify other version than the one set in
  the depends file.
- Use a "depends" file in package directory to specify minimum
  required ABI/API version for a package, so that there's no need
  to set the version all the time in pkgs.
- Updated bash to 4.0.

--HG--
extra : convert_revision : 1aa0ce32d4bdc2cd371eac19ae7bcff2c986b6b3

shutils/binpkg.sh

@@ -56,6 +56,7 @@ xbps_write_metadata_pkg()
 		if [ ! -f $XBPS_TEMPLATESDIR/${sourcepkg}/${subpkg}.template ]; then
 			msg_error "Cannot find subpackage template!"
 		fi
+		unset run_depends
 		. $XBPS_TEMPLATESDIR/${sourcepkg}/${subpkg}.template
 		pkgname=${sourcepkg}-${subpkg}
 		xbps_write_metadata_pkg_real
@@ -65,13 +66,11 @@ xbps_write_metadata_pkg()
 
 	[ -n "${subpackages}" ] && [ "$pkg" != "${sourcepkg}" ] && return $?
 
-	if [ -n "${subpackages}" ]; then
-		run_template ${sourcepkg}
-		unset run_depends
+	if [ -z "${run_depends}" ]; then
+		for subpkg in ${subpackages}; do
+			run_depends="$run_depends ${sourcepkg}-${subpkg}-${version}"
+		done
 	fi
-	for subpkg in ${subpackages}; do
-		run_depends="$run_depends ${sourcepkg}-${subpkg}-${version}"
-	done
 	xbps_write_metadata_pkg_real
 }