Adding support for permalinks retro compatibility
Fixing bug in defining the author of the document
Merge branch 'permalinks' of https://github.com/ehsavoie/Silverpeas-setup into ehu-permalinks
Each migration step is now transactionnal
Now each upgrade step in the dbBuilder is transactionnal thus avoiding th need to rerun all upgrades between version in case of an error
and alose avoiding the problem of multiple operations on a table that is not created since the transaction hasn't committed

Conflicts:
	src/main/java/org/silverpeas/dbbuilder/DBBuilder.java
Merge branch 'permalinks' of https://github.com/ehsavoie/Silverpeas-setup into ehu-permalinks