Commits on Jul 7, 2017

1. [path] Also match parent dirs in include/exclude …

   NOTE: This is a major change in pattern matching for `include` and
   `exclude` fields, and can result in additional inclusion/exclusion for
   some patterns.
   
   Previously, for inclusion/exclusion matters, Cargo only works with paths
   of files in a package/repository, and glob pattern matching has been
   applying only to these file paths.
   
   The old behavior results in some unexpected behavior. For example,
   having:
   
   ```toml
   exclude = ["data"]
   ```
   
   in a manifest next to a `data` directory, it will not exclude the
   directory. To make it work, a pattern must be provided that matches the
   *files* under this directory, like:
   
   ```toml
   exclude = ["data/*"]
   ```
   
   To make Cargo's inclusion/exclusion behavior more intutional, and bring
   it on par with similar systems, like `gitignore`, we need to also match
   these patterns with the *directories*. The directories are seen
   internally as *parents* of the files. Therefore, this diff expands the
   pattern matching to files and their parent directories.
   
   Now, it's easier to exclude all data files:
   
   ```toml
   exclude = ["data"]
   ```
   
   or include only the `src` directory:
   
   ```toml
   include = ["src"]
   ```
   
   Fixes <rust-lang#3578>

   

   behnam committed Jul 7, 2017
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