remove Homebrew check

[jonathanBieler]

This doesn't work on v0.7 because Pkg.installed doesn't take a String anymore. While it could be fixed with Compat I propose to remove the check since the error message for using Homebrew is very similar and we don't do the check for windows. Homebrew is also in REQUIRE so it should be installed.

[coveralls]

Coverage remained the same at 90.828% when pulling 6606e2a on jonathanBieler:pull-request/6606e2af into f1bd654 on JuliaGraphics:master.

[lobingera]

@jonathanBieler Looks reasonable. Do you think the failing test (travis, nightly, macos) is related?

[tknopp]

@lobingera I can confirm that this make Cairo usable under 0.7 / Mac again. travis seems to be another issue

[aviks]

Is this worth a new release please?

[lobingera]

Is this urgent and solving someone's problem? I'd like to update some deprecation warnings also, get 0.7 testing badge and find a solution for #223 which seems to be a side effect of the replacement of 'importall'. Time horizon: This weekend.

[aviks]

Yes, of course. I was stuck, but a Cairo#master has let me progress for the moment. Thanks!

[aviks]

And, to add, I've been troubled by #223 as well (on 0.6, mac), so a fix for that would be much appreciated!

[tknopp]

Transition to 0.7 seems to require a step-by step approach. First the "leaf-packages" need to migrate 0.7 and then make a release. As a depending package (like Winston.jl) first the dependencies need to get ready. Cairo is of course pretty close to a leaf package.

[lobingera]

OK, I'll look into #223 tomorrow again, but even if this is not solved - my guess it's the import of types from Graphics.jl - I'll do a release
@tknopp , @aviks Anything else that needs to be included?

[aviks]

Cairo is of course pretty close to a leaf package

And hence I'm here. @tknopp I'll ask about Gtk next. :)

[tknopp]

@aviks: I kind of feared that. Fortunately @jonathanBieler has (almost?) finished the port: https://github.com/JuliaGraphics/Gtk.jl/tree/teh/partial0.7

[lobingera]

@tknopp ,@aviks, 0.5.2 is tagged. I had no time to look into #223.