relocate code of Lecture 1: Static Checking.
add initial code for Problem Set 1: Pi Poetry.

Included are the following 13 files:

	.classpath
	.project
	src/piwords/AlphabetGenerator.java
	src/piwords/AlphabetGeneratorTest.java
	src/piwords/BaseTranslator.java
	src/piwords/BaseTranslatorTest.java
	src/piwords/DigitsToStringConverter.java
	src/piwords/DigitsToStringConverterTest.java
	src/piwords/Main.java
	src/piwords/PiGenerator.java
	src/piwords/PiGeneratorTest.java
	src/piwords/WordFinder.java
	src/piwords/WordFinderTest.java

Thank you!
							Lawrence X. Amlord
							  Oct 1st, 2014
							  Xi'an, China
add code in Lecture 2: Test-First Programming.

Included are the following 2 files:

	.classpath
	.project
	src/Find.java
	src/FindTest.java

Thank you!
							Lawrence X. Amlord
 							  Oct 1st, 2014
							  Xi'an, China