add some more bridging related parameters
generalise bonding_options and add support for bridging_options
actually add the briding_opts to the config file
add some more interface options
pass very basic test
remove unused function
whitespace fixes
introduce FileEditor/FileWriter to make tests possible
working meaningful basic test
fix missing SEEK_SET
intgrocdue FAIL_SUFFIX constant (allow access from unittests)
replace internal bu with gen_make_filename (allows access from within
unittests)
split some long lines
replace some forgotten bu calls with gen_backup_filename
add test for new bridge parameters
fix typo
types have strict spelling
Merge pull request #106 from stdweird/network_bridge_parameters

Add STP and DELAY network bridging parameters and unittests