bump min frontend for ddox to 2.072 ...

- stdx-allocator requires std.typecons.Ternary

Bump vibe.d to 0.8.3-alpha.1 for compatibility with dmd-nightly

Bump min frontend of fetchzip due to vibe.d incompatibility for the ...

testregistry

---
Opening file /tmp/gitcompatibledubpackage-cb607641-d990-4f5c-a426-0e158a14689e.zip
rawRead must take a non-empty buffer
Full exception: object.Exception@/home/travis/dlang/dmd-2.075.1/linux/bin64/../../src/phobos/std/stdio.d(902): rawRead must take a non-empty buffer
----------------
/home/travis/dlang/dmd-2.075.1/linux/bin64/../../src/phobos/std/stdio.d:902 @safe ubyte[] std.stdio.File.rawRead!(ubyte).rawRead(ubyte[]) [0xa16c4b]
source/dub/internal/vibecompat/core/file.d:46 @trusted void dub.internal.vibecompat.core.file.RangeFile.rawRead(ubyte[]) [0xa01908]
source/dub/internal/vibecompat/core/file.d:42 @safe ubyte[] dub.internal.vibecompat.core.file.RangeFile.readAll() [0xa01882]
source/dub/packagemanager.d:360 dub.package_.Package
---

Use echo instead of bash here string

fetchzip.sh: Display $retryCount in the error log output

Add symlink for 1.0.2.zip of the tested gitcompatiblepackage (to 1.0.4.zip)

dump dub output on failure

test fallback mirror usage on server errors

fix retry on http status error ...

- silent http status errors (e.g. 502) should be responsible
  for most "corrupted" zip packages

more robust testing ...

- require arguments for test_registry
- check removal of broken package

Don't break out of the retry loop for ZipExceptions - fixes #1336

prevent globbing and splitting of log arguments ...

- "$@" expands as expected in a string (like args.join(' '))

download timeouts ...

- 8s by default
- only for curl atm.

Fix #895, so that dub looks for a compiler next to itself first. Also, ...

put some restrictions on the defaultCompiler specified in a DUB
settings.json, such that it must be a compiler name, a path relative
to dub, or an absolute path, including a tilde-prefixed local path.
Unqualified relative paths are no longer allowed from the settings file,
as they make no sense for how dub invokes the compiler.

Add test.

Make issue884 unittest more portable by not using /dev/stdin anymore

bump ddox min_version ...

- recent libdparse (0.7.1-beta.9) relies on std.math.nextPow2 added in 2.071.0

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

# Conflicts:
#	CHANGELOG.md
#	test/common.sh

capture and log output of dub search failures

run dub with other compilers for test coverage

Merge remote-tracking branch 'upstream/master' into merge_master ...

# Conflicts:
#	test/run-unittest.sh

replace all usages of `exit` ...

- those skipped the ERR trap
- add die function to exit with line number and message

less verbose issue782 test

fix failures (due to bash error flags)

unify flags and error handling ...

- also add trap ERR handler to report exact error location

silence confusing test output ...

- failure is expected and should not appear in logs as it's easily
  confused to be the cause for a failed test

Merge pull request #972 from John-Colvin/inherit_pic ...

make pic inherited for dynamic libraries

Merge pull request #1177 from dlang/better_single_file_diagnostic ...

Perform stricter test for single-file recipe comments.
merged-on-behalf-of: Sebastian Wilzbach <sebi.wilzbach@gmail.com>

Merge pull request #1081 from wilzbach/single-package-default-name ...

Use a default package name for single file packages in case none is provided

Perform stricter test for single-file recipe comments. ...

The recipe file name must now be on the first line. The error message also mentions the required format, including the trailing ":" so that it becomes clear what needs to be changed.