Merged sundhaug92's updates to documentation and .gitignore/.travis.yml

.gitignore

 build/
+.coverage
+*.extracted/
+*.pyc

API.md

@@ -81,7 +81,7 @@ for module in binwalk.scan('firmware1.bin', 'firmware2.bin', signature=True, qui
 
 Note the above use of the `--quiet` option which prevents the binwalk module from printing its normal output to screen.
 
-Each module object will also have an additional `extractor` attribute, which is an instance of the `binwalk.modules.extractor.Extractor` class. Of particular use is `binwalk.modules.extractor.Extrctor.output`, a dictionary containing information about carved/extracted data:
+Each module object will also have an additional `extractor` attribute, which is an instance of the `binwalk.modules.extractor.Extractor` class. Of particular use is `binwalk.modules.extractor.Extractor.output`, a dictionary containing information about carved/extracted data:
 
 ```python
 for module in binwalk.scan('firmware1.bin', 'firmware2.bin', signature=True, quiet=True, extract=True):

INSTALL.md

@@ -31,6 +31,12 @@ Although all binwalk run-time dependencies are optional, the `python-lzma` modul
 $ sudo apt-get install python-lzma
 ```
 
+Binwalk uses the `nosetest` library for tests and `coverage` for test-coverage:
+
+```bash
+$ sudo pip install nose coverage
+```
+
 Binwalk uses the `pycrypto` library to decrypt some known encrypted firmware images:
 
 ```bash

README.md

+[![Build Status](https://travis-ci.org/devttys0/binwalk)](https://travis-ci.org/devttys0/binwalk)
+
 Description
 ===========