Merge pull request #119 from mailjet/unescaped_slashes_polyfill

json encode slashes for older php version

version number updated

Updated README to display the proper wrapper version.

Release v1.0.7

Added support for custom names for attachements.
Added support for filters in POST requests.
Added basic "Filtering" section to the README.
Fixed partial compatibility with php 5.3. This version isn't the recommended version and will not work with a small part of the wrapper (namely, the Send API).
See commit history for more details.

Remove dependency to composer.json to read wrapper version

Add useragent

Merge pull request #55 from edwinPhd/patch-1

fixed rounding error

v1.0.3 - Fixing addHTMLBody / uploadCSVContactslistData

Fixes #47

Add newsletterStatus action