Resolve "THIRD PARTY PAYMENT"

Closes #95

See merge request !78

# Conflicts:
#	build.xml

Resolve "fix CII BR-DE-29 - 31 rules"

Closes #96

See merge request !79

Merge branch '94-update-extension-rules-that-override-cen-rules-with-newest-code-list-values' into 'master'

Resolve "Update extension Rules that override CEN Rules with newest code list values"

Closes #94

See merge request !77

Resolve "Add mandatory existence rule for BT-89-91 in context of BG-19"

Closes #69

See merge request !71

Resolve "Fix Austrian to German IDs"

Closes #90

See merge request !72

Merge branch '89-extend-br-de-21-validation-in-cii-to-accept-extension-specification-identifier' into 'master'

Resolve "Extend BR-DE-21 validation in CII to accept extension specification identifier"

Closes #89

See merge request !74

Resolve "Wrong unit test in ubl-inv-contact-tests.xml"

Closes #91

See merge request !73

This reverts commit 35de9277.

This reverts commit 5073d956.