- add pages  migration, model and entity
- add page controllers
- update routes config to input page forms and page view in public
- fix markdow editor focus area
- show pages links in public side footer

closes #24

- add installGateway to app config
- update route names and groups
- remove `author_name` and `author_email` from `episodes` table
- remove `author_name` and `author_email` from `podcasts` table
- remove `owner_id` + add `created_by` and `updated_by` fields in `podcasts` and `episodes` tables
- remove unnecessary comments in database fields
- remove confirm password inputs from auth forms for better ux
- rename `pub_date` field to `published_at` and add publication time field in episode form

closes #14, #28

- add .editorconfig file
- format all files to comply with castopod's coding style
- switch parsedown dependency with commonmark library to better follow commonmark spec for markdown
- add prettier command to format all project files at once

closes #16

- add basic rollup config to bundle minified and browser compatible js
- use babel to transpile
typescript files to js
- add static code checkers: eslint and stylelint
- update package.json
scripts
- update DEPENDENCIES.md file to include rollup and popper
- set html in rss feed
description fields
- update Podcast and Episode entities to add description_html attribute
generated by parsing markdown to html using parsedown

#9

- refactor model / entity and controller logic for DRY code
- update episodes and podcasts
migrations
- define callbacks for podcast and episode models for enclosure update and cache
clearing

- refactor episode, podcast and category entities to add dynamic properties
- refactor Routes when adding feed route
- update migration files to better fit itunes' and rss' specs
- update podcast and episode forms
- add SimpleRSSElement class to Libraries
- add rss_helper
- update home controller to redirect if system has only one podcast