#28: manually merged
#28: typo fix
#21: fixed last issue from list
Merge pull request #69 from avogt/development

#28: manually merged, fixes #28, fixes #21
#21: forgotten Funktion update
Merge pull request #70 from avogt/development

#21: forgotten function update
#21: forgotten function replacement
Merge pull request #71 from avogt/development

#21: forgotten function replacement
refactored insertHeader method
fixed return value of prepareText
item table y coordinate is now correctly calc.
merged origin/development and new renderTotals
#12: tax output including new config option and some detail fixes
Merge pull request #72 from avogt/feature/tax_output_fix

#12: tax output including new config option and some detail fixes
license stuff
refactoring, new feature configurable engines for shipment and creditmemo
increased version, deletes old config data
Merge branch 'development'