BibMerge: new features and UI improvements

• Added a possibility to copy/merge whole record in one go.

• Added a possibility to mark slave record as duplicate. When submitting a record, the inputter has an option of marking the slave record as a duplicate, an action which also deletes this record.

• Added a possibility to retrieve old record revisions as slave records, e.g. <host>/record/merge/#recid1=3&recid2=3.20090210155308.

• Added a possibility to use temporary file as slave records, to work with BibEdit, e.g. <host>/record/merge/#recid1=3&recid2=tmp.

• Authentication/authorization improved.

• Added AJAX request dispatcher in bibmerge_engine.py.

• UI: control panel restructuring. Separated in collapsable submenus. Panel is now inactive when loading records to avoid multi-clicks.

• UI: change prev/next buttons in style of BibEdit.

• UI: automatic trigger of Compare in case of 'Enter' in recid2, in case of selection from history panel or in case of prev/ next buttons. The Compare button was removed.

• UI: hover over candidate records in the panel shows HS format.

• UI: printing 037__a in the candidate selection panel.

• UI: link provided to go from BibMerge to BibEdit.

• UI: in case the user needs a starting point of one record being shown alone. The URL changes to something like <host>/record/merge/#recid1=7&recid2=none.

• UI: CSS and JavaScript changes, like coloring of search or revision option and managing the carriage return press in input boxes, so that a default action is performed, mainly for faster user interaction.

• UI: improved interface of control panel (to select search, revisions). Added prev next buttons for search. Separate index counter for search and revision results.