Update README.md

Added install instructions to gather dependencies (php-font-lib)
save locale correctly
Merge pull request #647 from zimmski/master

Query current locale before setting to something PDF-friendly

`setlocale()` only returns the current locale with a locale parameter of "0" (which does not change the locale). So we need to set the locale in two steps: 1) query the current locale; 2) set the locale to something that outputs PDF-compatible strings.
DOMPDF::_process_html does an incorrect store & restore of locals
Merge pull request #648 from zimmski/master

Remove locale switching from DOMPDF::_process_html

DOMPDF::_process_html performs locale switching to avoid formatting issues, but it is called by DOMPDF:process which also performs locale switching. This nested locale switch breaks recording of the original locale resulting in the incorrect locale setting after dompdf runs (on systems where the local is incompatible with dompdf).
Merge pull request #607 from derekdreery/patch-1

Update README.md with basic installation instructions
Add simple installation instructions
update testing
added fonts
updated php-font-lib
fix calibri
update