Remove sudo commands from pip and python

Using pip and python with sudo is discouraged. In fact, the command
itself tells you not to use sudo and reports warnings with regards to
directory permissions.

README.md

@@ -12,7 +12,7 @@ Dependencies
 Check if your operating system provides those packages (check also those [deb/rpm/mac files](https://github.com/qiuwei/youtube-upload/releases)), otherwise install them with `pip`:
 
 ```
-$ sudo pip install --upgrade google-api-python-client oauth2client progressbar2
+$ pip install --upgrade google-api-python-client oauth2client progressbar2
 ```
 
 Install
@@ -22,7 +22,7 @@ Install
 $ wget https://github.com/tokland/youtube-upload/archive/master.zip
 $ unzip master.zip
 $ cd youtube-upload-master
-$ sudo python setup.py install
+$ python setup.py install
 ```
 
 Or run directly from sources: