Upgrading version to 2.0.14-dev
Added link to the contributing guidelines.
Added 'communicate' info.
Added a bytesSent parameter to the uploadprogress function.

Closes #98
Added an acceptParameter

Closes #63
Upgrading version to 2.0.14
Merge tag 'v2.0.14'

Implemented two feature requests: acceptParam, and bytesSent parameter.