Added .gitignore
Added params to building of urls

This allows you to pass `page` and `pagesize` as parameters.

For example you can now do the following:

```python
var acm = acmlib();
acm.get_person(1, {'page': 1, 'pagesize', 10});
```
Merge pull request #1 from cameronbwhite/master

Added .gitignore and added params