Use queryString to setup the pacakge parameters

fix #1372 - Ignore files in hidden directories.

Merge remote-tracking branch 'upstream/stable' into merge_stable

update version to v1.20.1-beta.1

LDC: Suppress noisy warning when cross-compiling via -arch=<triple>

LDC: Fix isLinkerDFlag() detection for options specified with 2 leading hyphens

Add support for iOS/tvOS/watchOS

Add playstation4 to platforms. (#1900)

fix #1556: dub --cache=local fetch + build ...

Building a package that was locally cached failed, because
the dependencies whould be fetched at the wrong destination.

For example if one tries to build the package 'optional':

$ dub --cache=local fetch optional
-> optional is now at ./.dub/package/optional
$ dub --cache=local build optional
-> fails because the dependency bolts was fetched to
./.dub/package/optional/.dub/package/bolts.

This is fixed by not overwriting the root path if dub builds
a package from the cache.

fix #1891: documentation of dub fetch

Merge pull request #1890 from Geod24/pr1870 ...

Default registry: add Skoppe's, remove Herokuapp
merged-on-behalf-of: Nicholas Wilson <thewilsonator@users.noreply.github.com>

update version to v1.20.0

Default registry: add Skoppe's, remove Herokuapp

update version to v1.20.0-rc.1

Merge pull request #1887 from dlang/add_codemirror ...

Add codemirror.dlang.org as the primary fallback registry.

Add codemirror.dlang.org as the primary fallback registry.

update version to v1.20.0-beta.2

update version to v1.20.0-beta.1

New environment variable SOURCE_FILES

Merge pull request #1844 from Geod24/searchpath ...

Clean up PackageManager handling of search path
merged-on-behalf-of: Nicholas Wilson <thewilsonator@users.noreply.github.com>

Merge remote-tracking branch 'upstream/stable' into merge_stable

update version to v1.19.0

Fix issue 1277: Missing dub.json causes infinite loop ...

For some reason, having a 'source/app.d' was recognized as being in a package.
This would load an empty package with no manifest and send the dependency resolver
in an infinite loop.
Remove the special detection of 'source/app.d' and rely only on manifest.
Another option would have been to detect 'source/app.d' as a single-file package,
but that is a bit too much magic (the user can just 'dub run --single source/app.d').

Merge pull request #1843 from MartinNowak/merge_stable ...

Merge remote-tracking branch 'upstream/stable' into merge_stable
merged-on-behalf-of: Mathias LANG <pro.mathias.lang@gmail.com>

Deprecate compatibility overload in PackageManager

Clean up PackageManager handling of search path ...

The PackageManager is a complicated beast:
it is responsible for handling the local caches where downloaded
packages are stored, including looking up a specific version of a specific package.

One feature that stood out while going over the code was the ability to disable
the default search path.
After looking up inside of Dub more, it turns out that this feature is exclusively
used when dub is called with the '--bare' option.

However, when this happen, a special constructor of the Dub class is called,
one that calls the 'PackageManager' constructor with 3 dummy arguments,
and rely on a boolean being set to avoid those 3 dummy arguments having any effect.
This ends up with effectively providing the ability to toggle the ability to
search default search paths in theory, but in practice the dummy arguments
means that it wouldn't work, nor is it actually needed.

Instead, a special argument for the single-search path approach is provided now.
In order not to break library users, the public symbols have been deprecated,
but their usage still works.
Note that some symbols are deeply entangled: for example, 'Dub.m_overrideSearchPath'
being non-empty means that 'PackageManager.m_disableDefaultSearchPaths' is 'true'.
It also means that 'PackageManager.m_repositories' is unused (and can be empty).
Hopefully removing the ability to toggle the default search path will allow
us to simplify things and make 'PackageManager.m_repositories' the only way
to specify whether or not the default packages search path are used.

Note that additionally to the changes aiming to deprecate 'Dub.m_overrideSearchPath'
and 'PackageManager.m_disableDefaultSearchPath', an unused constructor of PackageManager
has been deprecated.

Merge remote-tracking branch 'upstream/stable' into merge_stable

Merge pull request #1838 from Geod24/cleanup ...

Windows: Remove Roaming repository migration
merged-on-behalf-of: Nicholas Wilson <thewilsonator@users.noreply.github.com>

update version to v1.19.0-rc.1

Remove traces of VibeCustomMain ...

VibeCustomMain support was removed in Vibe.d v0.7.0,
released over 4 years ago (2015-11-04).