Add self-contained gometalinter build tooling.

tools/vendor/github.com/ryanuber/go-glob/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2014 Ryan Uber
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

tools/vendor/github.com/ryanuber/go-glob/README.md

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+# String globbing in golang [![Build Status](https://travis-ci.org/ryanuber/go-glob.svg)](https://travis-ci.org/ryanuber/go-glob)
+
+`go-glob` is a single-function library implementing basic string glob support.
+
+Globs are an extremely user-friendly way of supporting string matching without
+requiring knowledge of regular expressions or Go's particular regex engine. Most
+people understand that if you put a `*` character somewhere in a string, it is
+treated as a wildcard. Surprisingly, this functionality isn't found in Go's
+standard library, except for `path.Match`, which is intended to be used while
+comparing paths (not arbitrary strings), and contains specialized logic for this
+use case. A better solution might be a POSIX basic (non-ERE) regular expression
+engine for Go, which doesn't exist currently.
+
+Example
+=======
+
+```
+package main
+
+import "github.com/ryanuber/go-glob"
+
+func main() {
+    glob.Glob("*World!", "Hello, World!") // true
+    glob.Glob("Hello,*", "Hello, World!") // true
+    glob.Glob("*ello,*", "Hello, World!") // true
+    glob.Glob("World!", "Hello, World!")  // false
+    glob.Glob("/home/*", "/home/ryanuber/.bashrc") // true
+}
+```

tools/vendor/github.com/ryanuber/go-glob/glob.go

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+package glob
+
+import "strings"
+
+// The character which is treated like a glob
+const GLOB = "*"
+
+// Glob will test a string pattern, potentially containing globs, against a
+// subject string. The result is a simple true/false, determining whether or
+// not the glob pattern matched the subject text.
+func Glob(pattern, subj string) bool {
+	// Empty pattern can only match empty subject
+	if pattern == "" {
+		return subj == pattern
+	}
+
+	// If the pattern _is_ a glob, it matches everything
+	if pattern == GLOB {
+		return true
+	}
+
+	parts := strings.Split(pattern, GLOB)
+
+	if len(parts) == 1 {
+		// No globs in pattern, so test for equality
+		return subj == pattern
+	}
+
+	leadingGlob := strings.HasPrefix(pattern, GLOB)
+	trailingGlob := strings.HasSuffix(pattern, GLOB)
+	end := len(parts) - 1
+
+	// Go over the leading parts and ensure they match.
+	for i := 0; i < end; i++ {
+		idx := strings.Index(subj, parts[i])
+
+		switch i {
+		case 0:
+			// Check the first section. Requires special handling.
+			if !leadingGlob && idx != 0 {
+				return false
+			}
+		default:
+			// Check that the middle parts match.
+			if idx < 0 {
+				return false
+			}
+		}
+
+		// Trim evaluated text from subj as we loop over the pattern.
+		subj = subj[idx+len(parts[i]):]
+	}
+
+	// Reached the last section. Requires special handling.
+	return trailingGlob || strings.HasSuffix(subj, parts[end])
+}