replaced nuovo-rilascio.html with latest-version.html

added new static page (Edubuntu, Ubuntu Cinnamon and Ubuntu Unity)
with relative imgs

now build_scss takes all .scss files contained inside assets and build and minify them with min.css extension

Fixes: issue #31

now info.json has 'long_description' and 'portrait' key with img or video path

Fixes: issue #28

by using the 'releases' key in constants.json

Fixes: issue #27

added static/assets folder in gitignore

MR: https://code.ubuntu-it.org/ubuntu-it-web/www/-/merge_requests/48Signed-off-by: Mattia Rizzolo <mapreri@ubuntu.com>

added get_releases() docs param

mv populate_archs_releases() before get_releases()

now ver_interim_list and ver_lts_list get up all versions and take relative interim and LTS

now get_list_version() return sort list

replaced BASE_DIR with data_path in main.init

    - init_data_directory to create data dir
    - init_data_downloads to populate download page

replaced CompileVersion().get_list_version with self.list_version

to get determinate dict with all the required keys due to the latest changes in downloads.toml

replaced md5 with sha256 and http with https

Fixes: #16

added debug option in init command to not write downloads.cache

added debug in uitwww.create_app() in run command

added costants.json with the list of with the desired distros and relative descriptions

added compile_download to compile downloads.toml in './data/'

Fixes: #14

Fixes: #15

init _mirrors and _sha256sums in Downloads() to fix inspector warning

Autore:           Acn0w <masterchieff02@gmail.com>