Add roman numerals solution

.gitignore

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+.idea
+node_modules
+vendor

roman-numerals/Gulpfile.js

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+var gulp = require('gulp');
+var phpspec = require('gulp-phpspec');
+var run = require('gulp-run');
+var notify = require('gulp-notify');
+
+gulp.task('test', function() {
+    gulp.src('spec/**/*.php')
+        .pipe(run('clear'))
+        .pipe(phpspec('', { 'verbose': 'v', notify: true }))
+        .on('error', notify.onError({
+            title: "Crap",
+            message: "Your tests failed, Jeffrey!",
+            icon: __dirname + '/fail.png'
+        }))
+        .pipe(notify({
+            title: "Success",
+            message: "All tests have returned green!"
+        }));
+});
+
+gulp.task('watch', function() {
+    gulp.watch(['spec/**/*.php', 'src/**/*.php'], ['test']);
+});
+
+gulp.task('default', ['test', 'watch']);

roman-numerals/composer.json

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+{
+    "require": {
+        "phpspec/phpspec": "~2.0"
+    },
+    "autoload": {
+        "psr-0": {
+            "": "src"
+        }
+    }
+}