Wcmatch

- **NEW**: Drop Python 3.4 support.
- **NEW**: Add flags `FORCEWIN` and `FORCEUNIX` to force Windows or Linux/Unix path logic on commands that do not access the file system: `translate`, `fnmatch`, `filter`, `globmatch`, `globfilter`, etc. These flags will not work with `glob`, `iglob` or with the `WcMatch` class. It also will not work when using the `REALPATH` flag with things like `fnmatch`, `filter`, `globmatch`, `globfilter`.
- **FIX**: `glob` corner case where the first folder, if defined as a literal name (not a magic pattern), would not be treated properly if `IGNORECASE` was enabled in Linux.

- **NEW**: Add `WcMatch.is_aborted`.
- **FIX**: Remove deprecation of `kill` and `reset` in `WcMatch`. There are legitimate reasons to not deprecate killing via `kill` instead of simply breaking.
- **FIX**: If for any reason, a file exists, but fails "is directory" check, consider it as a file.

- **FIX**: Fix regression with exclusion patterns that use braces in `glob`.
- **FIX**: Translate functions should have `NODIR` patterns exclude if matched not exclude if not matched.

- **NEW**: Deprecated `WcMatch` class methods `kill` and `reset`. `WcMatch` should be broken with a simple `break` statement instead.
- **NEW**: Add a new flag `MARK` to force `glob` to return directories with a trailing slash.
- **NEW**: Add `MATCHBASE` that causes glob glob related functions and `WcMatch`, when the pattern has no slashes in it, to seek for any file anywhere in the tree with a matching basename.
- **NEW**: Add `NODIR` that causes `glob` matchers and crawlers to only match and return files.
- **NEW**: Exclusion patterns (enabled with `NEGATE`) now always enable `DOTALL` in the exclusion patterns. They also will match symlinks in `**` patterns. Only non `NEGATE` patterns that are paired with a `NEGATE` pattern are subject to symlinks and dot rules. Exclusion patterns themselves allow dots and symlinks to make filtering easier.
- **NEW**: Exclusion patterns no longer provide a default inclusion pattern if one is not specified. Exclusion patterns are meant to filter the results of inclusion patterns. You can either use the `SPLIT` flag and provide an inclusion pattern with your default ('default_pattern|!exclusion'), or feed in a list of multiple patterns instead of a single string (`['inclusion', '!exclusion']`). If you really need the old behavior, you can use the `NEGATEALL` flag which will provide a default inclusion pattern that matches all files.
- **NEW**: Translate now outputs exclusion patterns so that if they match, the file is excluded. This is opposite logic to how it used to be, but is more efficient.
- **FIX**: An empty pattern in `glob` should not match slashes.

- **FIX**: Fix an offset issue when processing an absolute path pattern in `glob` on Linux or macOS.
- **FIX**: Fix an issue where the `glob` command would use `GLOBSTAR` logic on `**` even when `GLOBSTAR` was disabled.

- **FIX**: In the `WcMatch` class, defer hidden file check until after the file or directory is compared against patterns to potentially avoid calling hidden if the pattern doesn't match. The reduced `lstat` calls improve performance.