[TYPO3-project-seminars] Update from 0.5.3 to 0.7.3

[Sergio Eures]

> 0.5.3 -> 0.5.4 -> 0.6.3 -> 0.7.3

Hallo Oliver,

0.5.4 -> 0.6.3 needs 0.6.1 in between, I think... (that is the last
available in pulldown-menu)

Danke, ciao
Sergio