Remove CLI command - it is nubs/which-cli now.

The CLI command was funny due to dependencies.  I didn't want to have
symfony/console be a dependency of the which library, but it is
necessary for the CLI command.  This meant that users wanting the
command would have to make sure to also install symfony/console
themselves.

As a separate package, this alleviates the concern.  I did a manual
subtree split plus cleanup in order to pull out the which command into
its own repository (without losing history :)).  People wanting the CLI
can pull that package in and it can have a hard dependency on
symfony/console.

README.md

@@ -152,25 +152,6 @@ var_dump($locator->locateAll('bin/php'));
 ```
 
 ### CLI Interface
-Also included is a `which` executable that works much like the standard which
-utility.  It takes an arbitrary number of parameters and outputs the path to
-each of them.
-
-```bash
-$ ./bin/which more vim foo
-/bin/more
-/usr/bin/vim
-foo not found
-```
-
-The command is configured as a binary with composer, so it is accessible in
-`vendor/bin/which` when you install the package.  For a global install, this
-means that you can find it in `$COMPOSER_HOME/vendor/bin/which`.  This command
-does require the symfony/console package to be installed and accessible via the
-autoloader.
-
-For windows users, the preferred installation method is using composer, i.e.
-via `composer global require`.  Composer will create a `which.bat` script in
-its bin directory that can be executed.  Alternatively, a `which.bat` script is
-included.  You may need to add the `bin` directory from this repository to your
-`PATH` environment variable to be able to access the command globally.
+There is also a CLI interface for both POSIX systems and Windows that imitates
+the standard which command.  It is available as
+[`nubs/which-cli`](https://github.com/nubs/which-cli).

build.php

@@ -3,7 +3,7 @@
 require 'vendor/autoload.php';
 
 $phpcsCLI = new PHP_CodeSniffer_CLI();
-$phpcsViolations = $phpcsCLI->process(['standard' => ['PSR1'], 'files' => ['bin', 'src', 'tests', 'build.php']]);
+$phpcsViolations = $phpcsCLI->process(['standard' => ['PSR1'], 'files' => ['src', 'tests', 'build.php']]);
 if ($phpcsViolations > 0) {
     exit(1);
 }

composer.json

@@ -1,7 +1,7 @@
 {
     "name": "nubs/which",
     "description": "A library for locating commands in a PATH.",
-    "keywords": ["which", "script", "path", "executable", "linux"],
+    "keywords": ["which", "script", "path", "executable", "linux", "windows"],
     "authors": [
         {
             "name": "Spencer Rinehart",
@@ -15,17 +15,12 @@
     },
     "require-dev": {
         "phpunit/phpunit": "~4.0",
-        "symfony/console": "~2.5",
         "brianium/habitat": "~1.0",
         "squizlabs/php_codesniffer": "~1.5"
     },
     "suggest": {
-        "brianium/habitat": "For better access to environment variables (e.g., for mocking).",
-        "symfony/console": "For the executable which command."
+        "brianium/habitat": "For better access to environment variables (e.g., for mocking)."
     },
-    "bin": [
-        "bin/which"
-    ],
     "autoload": {
         "psr-4": {
             "Nubs\\Which\\": "src"