Handle && inside path features, not only in free features. This allows to

use "<include>b&&a" to specify two include paths in specific order: specifying
"<include>b <include>a" will sort the paths lexicographically. This is
experimental interface.


[SVN r24691]

tools/build

@@ -1 +1 @@
-Subproject commit 1303a0d9bb09f62224e2182b4484d1c5b3a2f5b9
+Subproject commit dd5615c9cb5de249d41b132db5f033a5c829de52