Add formula for resty and jsawk

resty and jsawk are command-line scripts useful for testing REST/JSON APIs.

Formula/jsawk.rb

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+require 'formula'
+
+class Jsawk <Formula
+  head 'git://github.com/micha/jsawk.git'
+  homepage 'http://github.com/micha/jsawk'
+  
+  # Is there a built-in JavaScript interpreter on OS X 10.6 we can use instead?
+  depends_on 'spidermonkey'
+
+  def install
+    system "mv README.markdown README"
+    bin.install "jsawk"
+  end
+end

Formula/resty.rb

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+require 'formula'
+
+# resty is a bash wrapper around curl for testing HTTP/REST APIs.
+
+class Resty <Formula
+  head 'git://github.com/micha/resty.git'
+  homepage 'http://github.com/micha/resty'
+
+  def install
+    system "mv README.markdown README"
+    # Note: pp depends on perl JSON module, which we don't install for you.
+    bin.install %w[pp resty]
+  end
+end