Script tests re-added, all tests can run under gdb

Also fixed a minor bug with printing, and removed the ability to
configure the parser.

Added and updated QUICKSTART.md as a quick way to get people started.

There's some broken scripts under 'scripts/' that require functions to
work properly.

scripts/benchpress.toy

@@ -0,0 +1,17 @@
+//calculate the nth fibonacci number, and print it
+
+var counter: int = 0;
+
+var first: int = 1;
+var second: int = 0;
+
+//BUG: This causes a stack overflow
+while (counter < 100_000) {
+	var third: int = first + second;
+	first = second;
+	second = third;
+
+	print third;
+
+	++counter;
+}

scripts/fib.toy

@@ -0,0 +1,16 @@
+//BUG: Not yet functional
+
+//example of the fibonacci sequence
+fn fib(n: int) {
+	if (n < 2) return n;
+	return fib(n-1) + fib(n-2);
+}
+
+//TODO: type coercion syntax hasn't been decided on yet, but it will be needed
+for (var i = 1; i <= 10; i++) {
+	print i .. ":" .. fib(i);
+}
+
+//Note to my future self: yes, the base case in 'fib()' is 'n < 2', stop second guessing yourself!
+//Note to my past self: don't tell me what to do!
+//Note to both of you: keep it down you young whipper snappers!

scripts/fizzbuzz.toy

@@ -0,0 +1,24 @@
+//standard example, using 'while' instead of 'for', because it's not ready yet
+
+var counter: int = 0;
+
+while (++counter <= 100) {
+	var result: string = "";
+
+	if (counter % 3 == 0) {
+		result = result .. "fizz";
+	}
+
+	if (counter % 5 == 0) {
+		result = result .. "buzz";
+	}
+
+	//finally
+	if (result != "") {
+		print result;
+	}
+	else {
+		print counter;
+	}
+}
+

scripts/funky.toy

@@ -0,0 +1,20 @@
+//BUG: functions aren't working yet
+fn makeCounter() {
+	var counter: int = 0;
+
+	fn increment() {
+		return ++counter;
+	}
+
+	return increment;
+}
+
+var tally = makeCounter();
+
+while (true) {
+	var result = tally();
+
+	if (result >= 10_000_000) {
+		break;
+	}
+}

scripts/leapyear.toy

@@ -0,0 +1,8 @@
+//BUG: Not yet functional
+
+//find the leap years
+fn isLeapYear(n: int) {
+	if (n % 400 == 0) return true;
+	if (n % 100 == 0) return false;
+	return n % 4 == 0;
+}