Enhancement: ExternalScripts, getItem, and milliseconds option for image

[LuckyMallari]

My Changes: https://github.com/LuckyMallari/org.openhab.ui.habpanel

ExternalScripts:
Basically, it adds ../static/habpanel/externalscripts.js to head
Users can then create their own scripts (Angular or not) to their hearts' content.

getItem()
returns item (to access all properties)

Milliseconds:
Image $interval now has 2 options: seconds (default) or milliseconds.
Does not break existing install/configs.

[kubawolanin]

Adding #128 for reference.

[ghys]

ExternalScripts:
Basically, it adds ../static/habpanel/externalscripts.js to head
Users can then create their own scripts (Angular or not) to their hearts' content.

Sorry, I don't agree with this solution. You can actually lazy load external resources using the ocLazyLoad directive (https://oclazyload.readme.io/docs/oclazyload-directive) but I'm now realizing there is a big security hole with this. I need to address this ASAP.

getItem()
returns item (to access all properties)

This is already covered by #114 which was submitted first.

Milliseconds:
Image $interval now has 2 options: seconds (default) or milliseconds.
Does not break existing install/configs.

Can you please submit a separate PR for this?

Thank you!

[ghys]

I need to address this ASAP.

Partial mitigation measure in #132 ...it's a shame it didn't make 2.0.0.

[LuckyMallari]

Closing issue.
Opened a new PR here:
#133