Merge pull request #177 from JackStouffer/Issue-176

Fix Issue #176: DynamicArray should use std.experimental.allocator.common.reallocate

a simple fix for uninitialized dynamic array data

-preview=in: Replace 'in ref' with 'const ref'

Allow the code to compile with '-preview=in'.

Merge pull request #154 from dlang-community/more-treemap-fixes

Fix a few problems with TreeMap.getOrAdd
merged-on-behalf-of: Brian Schott <Hackerpilot@users.noreply.github.com>

Merge pull request #153 from dlang-community/ttree-fix

Fix more dumb issues with tree ranges

Merge pull request #152 from dlang-community/tree-tweaks

Make some enhancements to the treemap structure, and to the T-Tree do…
merged-on-behalf-of: Richard Andrew Cattermole <alphaglosined@gmail.com>

Merge pull request #150 from dlang-community/fix_ref_returns

Fix #148
merged-on-behalf-of: Brian Schott <Hackerpilot@users.noreply.github.com>

Merge pull request #144 from dlang-community/issue-143

fix #143 - Still issues in unrolled list
merged-on-behalf-of: Basile-z <Basile-z@users.noreply.github.com>

Merge pull request #145 from dlang-community/fix_insert

Fix use-after-free when an insert causes a rehash

Merge pull request #141 from dlang-community/stdx-allocs+Meson

Fix CI failure starting from DMD 2.085