Updated binary to version 0.12.4

Using the static linux binaries. Added the class \h4cc\WKHTMLToPDF for easier usage by @mhlavac

Release notes can be found here: https://github.com/wkhtmltopdf/wkhtmltopdf/releases/tag/0.12.4

Updated binary to version 0.12.3

Using the static linux binaries, that should work on all platforms again.

Release notes can be found here: https://github.com/wkhtmltopdf/wkhtmltopdf/releases/tag/0.12.3

Updated binary version.

Updated debian wheezy binary to version 0.12.2.1. (thx michaelperrin)

Updated binary version.

Used the Debian 7.5 compilation, because static generic linux binaries are not provided anymore by wkhtmltox.

Updated binary version.

Updated the binary to the newest available version.
For changes check: https://github.com/wkhtmltopdf/wkhtmltopdf/releases/tag/0.12.0

wkhtmltopdf-0.11.0_rc1 Linux Static Binary (amd64)

 Added composer.json and binary from https://code.google.com/p/wkhtml…

…topdf/downloads/detail?name=wkhtmltopdf-0.11.0_rc1-static-amd64.tar.bz2