Lua script needs to be adapted if running in virtual directory in Docker

[Luuk]

If running Openrem in Virtual directory, using the Docker setup, one needs to fill the virtual directory in the HttpPost of the Lua script:

HttpPost('http://nginx/import/from_docker/', post_data, headers)

Should become

HttpPost('http://nginx/' .. dms .. 'import/from_docker/', post_data, headers) (where dms is the variable holding the virtual directory).

[Luuk]

dms should be empty or ending with a /

so

dms = ''

or

dms = ‘virdir/’

‌

[Ed McDonagh]

Minor tweaks for virtual directory docs. Refs #923 [skip ci] docs only

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[Ed McDonagh]

Merged in issue923virtualdir (pull request #528)

Minor tweaks for virtual directory docs. Fixes #923

https://bitbucket.org/openrem/docker/pull-requests/9 also approved by @LuukO and merged.

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