add legacy uswds and update SocialMeta

Author: joshbruce

sam-uikit-php-0.0.0/README.md

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+# SAM UI Kit - PHP
+
+This User Inteface Kit is a PHP library for generating UI components as described by the [U.S. Web Design Standards](https://standards.usa.gov) with some additional components and modifications.
+
+For documentation and design standards see the [SAM Web Design Standards](http://joshbruce.github.io/sam-web-design-standards/).
+
+## Composer installation
+
+composer.json
+
+```
+"require-dev": {
+    "joshbruce/sam-uikit-php": "dev-master"
+}
+```

sam-uikit-php-0.0.0/composer.json

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+{
+    "name": "joshbruce/sam-uikit-php",
+    "description": "HTML generator returning elements configured based on US Web Design Standards, with extended components.",
+    "keywords": [],
+    "homepage": "https://github.com/joshbruce/iae-uikit-php",
+    "type": "library",
+    "license": "MIT",
+    "authors": [{
+        "name": "Josh Bruce",
+        "email": "[email protected]"
+    }],
+    "require": {
+        "php": ">=5.3.0",
+        "phpunit/phpunit": "~4.0"
+    },
+    "autoload": {
+        "psr-4": {"SAMUIKit\\": "src/"}
+    }
+}