i#2451: Update drstrace link in README.md (DynamoRIO#2452)

Updates a stale drstrace page link in the README.

Fixes DynamoRIO#2451

Upgrade to VS2019 (DynamoRIO#2448)

Updates DR to the latest 6431fc4f5 for VS2019 support and to fix DynamoRIO/dynamorio#5432.

Updates GA CI jobs to use the 2019 image.

Defines VS2019-required defines, just like DR does.

Avoids dup symbol errors for strtol in libucrtd and ntdll_imports via /force:multiple (xref DynamoRIO#1805).

Issue: DynamoRIO/dynamorio#5195, DynamoRIO#1805, DynamoRIO/dynamorio#5432

Fix stale doc links (DynamoRIO#2445)

Updates old links that pointed to drmemory.org/docs/

i#2440: Update DR to eliminate Win7 import error (DynamoRIO#2441)

Updates DR to 5e27a982 to fix DynamoRIO/dynamorio#2658 where Windows 7
has imports in kernel32.dll which are in kernelbase.dll on all
subsequent Windows versions.

Issue: DynamoRIO#2440, DynamoRIO/dynamorio#2658
Fixes DynamoRIO#2440

DRi#4958: Update DR to eliminate DR blocks (DynamoRIO#2439)

Updates DR to 3b4d7485 which fixes DynamoRIO/dynamorio#4958,
eliminating basic blocks coming from the DR library.

This also pulls in a fix for an injection crash from app compatibility
layers: DynamoRIO/dynamorio#5198.

Removes the workaround in the umbra_client_insert_app_to_shadow test
that is now no longer needed.

Issue: DynamoRIO/dynamorio#4958, DynamoRIO/dynamorio#5198

Upgrade GA CI ninja to 1.10.2 (DynamoRIO#2437)

We're hitting problems downloading 1.7.2 and it's good to upgrade in
any case.  This udpates the ninja in our CI jobs to 1.10.2.

Update to version 2.5.0

Updates from 2.4.xx to 2.5.xx.

Fix docs workflow for drcallstack (DynamoRIO#2433)

Install libunwind-dev for the docs workflow to avoid a DR cmake abort.
Update the New Release docs to suggest using a PR branch for the package.

i#2425: Add Ubuntu21 support (DynamoRIO#2430)

Updates DR to f3d907d7 to fix DynamoRIO/dynamorio#5133: call
__libc_eary_init for private libc.  This fixes crashes in Dr. Memory
when it uses libc routines on glibc 2.32+..

Fills in the table entry for SYS_newfstatat to avoid false positives
from the loader's munmaps.

Fixes DynamoRIO#2425

i#2417 Ubuntu20: Update DR (DynamoRIO#2420)

Updates DR to 0546c39d.
Updates test line numbers as asm_defines was changed.

Issue: DynamoRIO#2417