v0.2.4 - The big documentation update!

05c0b99 refactor(README): add more detailed instructions on setup
09fb52b refactor(watch/watch-template): document functions and re-use video element instead of re-creating a new one in the stream page
56ed285 refactor(stream-utils): document functions, and use environment variable in rewrite_stream_playlist
8ce66e1 refactor(hls): change stream serving function, to not include path names - as this is already used in the HLS_DIR environment variable
29211bb cleanup(utils): remove unused util file
3a6ee68 refactor(stream-api): document functions, remove un-used JSON parser in stream generation function
b99e5ea refactor(rtmp-server-api): document functions, implement private ip verification
394c7ef refactor(manage): document function
aed2d07 refactor(template-watch): remove duplicate video instance
3a15f1e refactor(archive): remove redundant return when the archive is empty
3e35433 refactor(index): document function, remove redundant return when there are no livestreams going
fadbf53 refactor(hls): document function, fix incorrect info in docstring
bdac9a7 refactor(db): create individual functions for querying single and multiple database items, document functions
912d7e6 refactor(init): document create app function
81e378b refactor(archive): document functions and use more accurate variable names
790012d refactor(auth): document functions and remove unused endpoint