Add OverwriteOrCreateRule
Add a variable selector to query the values of Goobi internal variables
Call data copier from export routines, add documentation
Get it to work
Fix typo in new class files and some javadoc
Add missing newline at end of file

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Merge pull request #200 from matthias-ronge/issue_172

Merge:  Keep process ID during METS/MODS export (#172)
Apply metadata copier on METS-only export, too
Merge remote-tracking branch 'matthias-ronge/issue_172' into 1.10.x
Merge remote-tracking branch 'stweil/fix-eof' into 1.10.x
Adds the parameter MetsEditorDisplayFileManipulation=true to display the
file manipulation dialog within the mets editor
Merge pull request #235 from frank-ulrich-weber/MetsEditorDisplayFileManipulation110

Adds the parameter MetsEditorDisplayFileManipulation
Add feature to recombine a metadatum out of several others
Add missing javadoc
Merge pull request #237 from matthias-ronge/issue_236

Add feature to recombine a metadatum out of several others