Documents in "Getting started"

[GabrielXia]

• Add a sphinxcontrib.youtube extension to play video in the docs. Please install it via pip and see video in fullWorkspace page
• lightWorkspace: https://github.com/MovingBlocks/Terasology/wiki/Setting-up-a-Light-Environment
• merge the intellij and eclipse setup together in fullWorkspace: https://github.com/MovingBlocks/Terasology/wiki/Eclipse and https://github.com/MovingBlocks/Terasology/wiki/Preparing-an-Engine-Workspace
• Add a command issue page in Getting started page: https://github.com/MovingBlocks/Terasology/wiki/Common-Issues

[oniatus]

Can't get the sphinxcontrib.youtube extension running via the default pip installation: [...]\python36-32\lib\site-packages\sphinxcontrib\youtube\youtube.py", line 3, in <module> import urlparse ModuleNotFoundError: No module named 'urlparse'

The 0.1.2 version seems to be incompatible with python 3. The package index links to a 0.2.0 version: https://pypi.python.org/pypi/sphinxcontrib.youtube however, the pip lookup ends with 0.1.2: https://pypi.python.org/simple/sphinxcontrib.youtube/ so I was unable to install 0.2.0 via pip.

Fetched https://github.com/shomah4a/sphinxcontrib.youtube manually and ran python setup.py install to get the 0.2.0 version.

Can you add the link and command for the manual installation to the readme in case someone else gets the same issue? :)

Going to review the new pages now.