Updated website and new release

[Arno500]

When looking at the main aegisub.org website, we can think the project is dead.
But it's not, and it's hard for fansubbers to compile their own version of Aegisub.
As mentionned in #76, it would be awesome to have a new shiny release ready to be put on a new website (including a new forum maybe, a new News section if needed and even new documentation with something like Readthedocs).
I'm willing to contribute to the new website if needed.

[denizdogan]

Who is the person responsible for updating these things? Six years since the last official release is a very long time. Is there even a maintainer anymore?

[tudos4]

There is a developed fork: https://github.com/wangqr/Aegisub

[FichteFoll]

You can follow #214 now.