new hungarian translation, kudos to Barnabás
added composer.json
Merge pull request #357 from kevinpapst/updateinfo

added composer.json
fixes #277 #349
Merge pull request #358 from kevinpapst/fixes/349

Fixes #277 #349
unset variables that should not be in the invoice template
map customer array to old ODT variable names
invoice templates
Merge pull request #359 from kevinpapst/invoices

Invoice improvements
reformatted code
added currency name
added invoiceUrl
support html and phtml as files
added currency name
Merge pull request #360 from kevinpapst/invoice

Invoice improvements
changed two extension title
reformatted
removed duplicate keys
Merge pull request #361 from kevinpapst/language-hu

Language hu
added type hint
hopefully fixed #316 - $this in Closure is only allowed in PHP 5.4