Merge pull request #2 from ZIMK/master

updating my fork
fixed the textfields from datatables plugin (quick and dirty)
removed datatables
implemented an script to filter tables
minor fix
enhance sort system
log model diff on model edit
fix pep8
add testcase for host diff mixin
add statucrule migration
log model diff on model edit
fix pep8
add testcase for host diff mixin
Merge branch 'feature/changelog_model_diff' of github.com:pgolm/fwadmin into feature/changelog_model_diff
Merge pull request #36 from pgolm/fix/migration

hotfix: add staticrule migration
add some tests for static rules
allow port_ranges in firewall rules
add port range verification
update template port->port_range
fix JS
collapse the advance tab if new rule is not valid