Have 'Configuration Reference' link point to uploadfield page

Oops.
Merge pull request #1864 from tomzen/patch-1

Have 'Configuration Reference' link point to uploadfield page
Only show direct members of a group in the members field

The call to Members() includes members of child groups, which was causing any members added through the grid field to be added to the child groups as well.
Add code-sniffs other than line length to scrutinizer
Merge pull request #1934 from simonwelsh/scrut

Add code-sniffs other than line length to scrutinizer
BUG: Treedropdowns broken inside togglecomposite fields (fixes #1945)

* Removed positioning javascript from treedropdownfield
* Set parent to be relatively positioned and overflow to visible
Merge pull request #1969 from robert-h-curry/patch-1

Only show direct members of a group in the members field
Remove redundant get_extra_config(). (Fixes #1973)
Merge remote-tracking branch 'origin/3.0' into 3.1

Conflicts:
	.travis.yml
Removes PHPCS env from Travis build
Merge pull request #1975 from adrexia/treedropdown-inside-toggle-1945

BUG: Treedropdowns broken inside togglecomposite fields (fixes #1945)