fixes #34

simple test = just compile example site

1. More robust href parameter parsing
2. Split youtube-related code (except html) to separate file
3. Unit tests for 1 and 2
4. Heading "Hello - world" now generates "hello-world" anchor instead of
   "hello---world" (no more duplicated hyphens in urls)

1. Not building without build/theme directory (race condition)
2. Wrong defaults for contentdir
3. Other bugs caused by those. Fixes #32 and #33

(we use google fonts)

Fixes #31

Fixes #28

and add few command line options

use ./index.js --help to learn more

ok1kvk.cz/forum -> forum.ok1kvk.cz

Issue #11

Fixes #11

metadata to disable: `notarticle = true`

Also simplified theme.js and writeFiles.js which also fixed weird bug
Fixes #22

Also change from sftp upload to ftp upload

Fixes #4

Just write ![alt](img.png =x123,nolightbox)
or ![alt](img.png =nolightbox)

Also fixed tables being too big

+ add log filter for use in templates

Separator is any character sequence from start of file to first newline.

For example:
    ```
    title = "Whatever"
    ```
    # Hello
is now possible

Fixes #20

fixes #17

+ add link to "How to submit changes"

fixes #21

It caused more problems than it solved

This fixes #8

Also fixed generator crashing when article was not commited