although the system provides a number of default parameter configuration,But these default configuration may not be able to meet the needs of some users, therefore system allows the user to modify default configuration,configuration including packaging format/distro/bb_number_threads/parallel_make/image rootfs size/image extra size/down dir/sstate directory/template file.
in django hob web can able to obtain data from bitbake server by RESTful API, the data include packaging format,image rootfs size,image extra size,build toolchain,distro,bb_number_threads,parallel_make,layers list and available machines.these information will be used in parsing recipes/packages/images later,the data is stored in the cache.
Webhob feature has changed, the feature will be abandoned.
remove it.