added the ability to call a specific method within the sandbox
passed methodName to timeout callback
fixed an error if the buffer represents a undefined variable
Updated README (added "Run functions independently")
fixed eploits.
Merge pull request #25 from bcoe/exploit-fix

Fixed two major exploits pointed out in #21
added travis badge.
added .travis.yml
Merge remote-tracking branch 'upstream/master'

Conflicts:
	lib/sandbox.js
making tests play nice with travis.
Merge pull request #26 from bcoe/travis

Adding Travis Tests
bumped version #.
security fix based on @othiym23 suggestion.
bumped version #.
Merge pull request #27 from bcoe/security-fix

Small Security Nit
Merge branch 'master' of https://github.com/bcoe/sandcastle

Conflicts:
	lib/sandbox.js
added independent function call test
a few minor changes to independent functions pull.
fixed README
added independent function calls with shared api and individual globals example