Bug 6014 : MT3138 Adding some permission management to viewlog

Bug 6014 : MT3138 Adding some permission management to viewlog

If user can not access reports, then form to search the logs is not displayed.
It also improves the presentation.

C4/Log.pm
- adds the fact that we can enter multiple actions
- fixes the fact that user information was truncated

circ-menu.inc:
Fixing information passed to the viewlog from circ-menu

Signed-off-by: fdurand <frederic.durand@univ-lyon2.fr>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>