Started work on C testing

Added C types in lexer.
Copied jfileutil.py->cfileutil.py and modified for c files.
Also added simple files to test in c_files.
Added negative numbers to lexer
Added pointer notation in yacc/traverse

New grammar rule recognizes as many *'s as wanted after res_lang type
Merge pull request #49 from JALsnipe/master

fixed a typo in the test suite
Attempt to change cfunct for C files

Unfinished; constructCHelperCode does not work as it should.
Merge branch 'master' of https://github.com/svelTest/svelTest
Merge pull request #50 from kaitlinhuben/master

Tried to add C testing; stuck in cfunct.py [don't merge yet?]
Merging Josh's readlines() and test suite fixes into master.

Merge remote-tracking branch 'upstream/master'
Merge pull request #51 from JALsnipe/master

implemented jenky readlines() from file.
verbose option to report expected vs actual outputs if test fails
fix string comparison in jfunct
allow computed values as index accessors into an array. (e.g. a[i+1])
add type conversion library functions (a little hacky). currently only string(), int(), double(), boolean()
Merge pull request #53 from emilyhsia/master

Add type conversion library functions (e.g. int(), string(), double(), boolean())
add demo poker Java code and testcases
Merge pull request #54 from emilyhsia/master

[mandy] add demo poker Java code and testcases
add svel program to test the demo Java poker program
add comments to poker.svel
Merge pull request #55 from emilyhsia/master

poker.svel grading demo
add fib demo svel and Java code