Added HelloWorld example

Can now start building parser/lexer/compiler
Merge pull request #4 from kaitlinhuben/khuben/testing

Added HelloWorld example
Added PLY lexer example

Run with ```python calclex.py```
Merge pull request #5 from kaitlinhuben/khuben/testing

Added PLY lexer example
Added full PLY calculator example

Run with ```python calc.py```
End input loop with CTRL-D
Added PLY example (calculator) that uses classes
Cleaned up PLY examples; added .gitignore
Moved old C lex/yacc examples to own folder
Changed path to ply for ply examples
Preliminary svel lexer

Only recognizes reserved words and IDs/numbers
Can tokenize one line at at time with ```python svelLex.py``` or "test" sample program with ```python testSvelLex.py```
Merge pull request #6 from kaitlinhuben/khuben/testing

Added more full PLY examples
Added /* */ and // style comments
Added strings and other symbols to lexer

Added strings encased in double quotes ("...") and other symbols
Full list of new symbols:
+
-
*
/
(
)
=
;
:
.
,
{
}
[
]
>
<
>=
<=
&&
||
==
!=
Merge branch 'master' of https://github.com/kaitlinhuben/svelTest into khuben/testing
Merge pull request #7 from kaitlinhuben/khuben/testing

Added comments, strings, and other symbols to lexer
Merge branch 'master' into khuben/testing
Started PLY parser

Extremely basic parser that parses the following lines and simply spits text back out (no AST creation, etc.)
```main() {
	testcase sysoutTestCase = {noParams, systemOut};
}```

Can test by doing ```python testSvelYacc.py```
Can clean files with ```make clean```
Merge pull request #8 from kaitlinhuben/khuben/testing

Started PLY parser
Moved lexer/parser testing into test folder

Also copied Makefile for easy cleanup of generated files
Test folder refactoring