Merge pull request #4 from chrso/master

generate .py code for hello world example
Update README.md

Same content as the wiki... putting it here if we want to create a github page for this repository later on
HELLO WORLD! Basic compiler skeleton up

All files in the helloworld folder. Once in folder, can test with:
```python svelCompile.py helloworld.svel```
Will get an output helloworld.py, which can be run and just prints "Hello World!"
Merge pull request #5 from kaitlinhuben/master

HELLO WORLD! Basic compiler skeleton up
created jextractor class (Java extractor) to extract neccessary info from Java files. currently gets method signatures and return types
removed semicolon mistakes
removed semicolon mistakes
Removed PLY warnings from Hello World compiler

That way user doesn't have to be bothered by warning messages. Can be easily turned off by removing "errorlog=...NullLogger()" in svelCompile.py where ... is either lex or yacc.

Left PLY warnings in main lib for now.
Merge pull request #6 from emilyhsia/master

created jextractor class (Java extractor)
Hello World testing a main function

Syntax isn't correct and everything's pretty janky, but here's the deal:

printhelloworld.py just prints "Hello, World!"

test-helloworldMain.py compiles code that runs printhelloworld.py and compares output for correctness.

That creates a file called test.py.

To test things out:
```
python test-helloworldMain.py
python test.py
```

You should see ```Hello World passed.```
Merge pull request #7 from kaitlinhuben/master

Hello World testing main function & removed PLY warnings from Hello World compiler
added svelTraverse to lib; renamed old svelTraverse in helloworld to avoid conflicts