Updated Composer installation instructions
Correct RingPHP documentation link
Merge pull request #864 from WyriHaximus/patch-1

Correct RingPHP documentation link
Merge pull request #862 from pgodel/patch-1

Updated Composer installation instructions
Fixing error and end events for network errors.

When a networking error occurs, the future response that is created
for the transaction does not receive an exception until after the
future is waited on. When calling getResponse() in an event that
is emitted after a networking error, the response returned will
be a future with no actual data to use and throws when accessed.
This commit updated these events to return null if the response
of the transaction is a future. In these cases, it means that the
response did not complete successfully. I've also added a new method
to make this more explicit: hasResponse().

Closes #867.
Fixing transfer_info vs transfer_stats.

Closes #866
Prepping bugfix release
fixed issue with NET MVC 4 multipart uploads
moved \r\n to trailing boundary addition
Merge pull request #871 from alekseykuleshov/bugfix/issue-with-NET-MVC-4-multipart-uploads

Fixed issue with NET MVC 4 multipart uploads
Merge pull request #5 from guzzle/master

Update from origin