Use new syntax of Julia 0.6

[lbenet]

This is WIP aimed to use the new syntax introduced in Julia 0.6, to eventually drop the support for Julia 0.5.x.

[coveralls]

Coverage increased (+1.7%) to 95.837% when pulling fb4b2a4 on deprecations0.6 into 2381ad4 on master.

[coveralls]

Coverage increased (+1.7%) to 95.837% when pulling c5cfd6e on deprecations0.6 into 2381ad4 on master.

[dpsanders]

Have you seen
https://juliacomputing.com/blog/2017/08/17/femtocleaner.html
?

[lbenet]

I heard, and forgot about it :-P

Thanks for reminding me.

[blas-ko]

Is this still WIP?

[lbenet]

I have just changed the title of this PR.

While I think this is essentially done, I think a new version (0.5.1) should be released that is the last one supporting Julia 0.5. This could then be merged, and perhaps we should also tag a new version (0.6.0) which includes this PR. Following this plan, a few changes may still be needed...

@dpsanders What do you think about this?

[dpsanders]

I agree with making a final 0.5 release if there's something new.

[lbenet]

(Rebased to current master)

[coveralls]

Coverage increased (+1.6%) to 97.11% when pulling 2db7c27 on deprecations0.6 into 909689b on master.

[lbenet]

I just tagged v0.5.1, commit 909689b, with a bunch of additions; it is the last version compatible with Julia 0.5.+. The idea is, once that version is in accepted in METADATA, this PR can be merged and it will tagged as v0.6.0. This supports Julia 0.6.0+ and above. Tests are passing.

[lbenet]

I have retouched and updated some parts of the docs. I think this is ready to be merged and tagged as 0.6, so we drop support to Julia 0.5.x. Do you agree @dpsanders ?

[coveralls]

Coverage increased (+1.6%) to 97.11% when pulling 943dcfb on deprecations0.6 into 909689b on master.

[dpsanders]

Yes, great, go ahead!

[coveralls]

Coverage increased (+1.6%) to 97.11% when pulling 943dcfb on deprecations0.6 into 909689b on master.

[lbenet]

Done! I just tagged and submitted the PR to METADAT.