fix(core): Remove the <base> tag.

[0x24a537r9]

Fixes #1224. Everything looks good in the browser and server/e2e tests, but unfortunately the unit tests are broken, and I'll probably need some guidance from someone more familiar with Angular/Karma.

[lirantal]

@meanjs/contributors any say?

[ilanbiala]

I remember using SVG and Angular, but I don't think I had to remove the base tag. Sadly I can't access that code anymore, so I can't tell you for sure how I solved that issue. @0x24a537r9 did you find an authoritative Angular contributor/issue saying that the base tag cannot be used?

[0x24a537r9]

@ilanbiala please see my explanations in #1224 for why the base tag will break specific SVG features (not all SVGs or Angular). I provide a number of sources detailing exactly when and why the <base> tag is problematic.

Unfortunately due to wedding planning and performance assessments at work, I haven't had any time to continue looking into the unit test issue I was running into described in #1224. That said, I really wasn't making any progress anyway, so this might need to be forked and taken up by someone more familiar with Angular testing with Karma.

[lirantal]

@0x24a537r9 can you take another look at this PR?

[coveralls]

Coverage remained the same at 70.628% when pulling 428c589 on 0x24a537r9:remove-base-tag into 35d7501 on meanjs:master.

[lirantal]

We can really save this PR if someone can help fix the Karma tests...
cc @0x24a537r9 @seanhussey @hyperreality @mleanos