Signed-off-by: Vitalii Koshura <lestat.de.lionkur@gmail.com>

Test base64 library

[CI] make build artifacts available through github

Scheduler, XML plan class spec: parse Linux version correctly

Add CTRL+A shortcut

cppcheck: avoid chance to read from uninitialised data

add OSX CI badge to readme

fix compilation without deprecated OpenSSL APIs

Complete list of files to be installed for tools

Determine gtkver for wxWidgets more correctly

[CI] add OSX workflow to Github Actions

[CI] replace Travis and AppVeyor with Github Actions

The previous CI system (Appveyor) used `True` and `False` but the new one (Github Actions) uses `true` and `false`.

Update comments in dependencyNames.sh
Update Mac build instructions
Force rebuild of CI-Travis dependency cache (temporary for testing)

Forgot to include this file in ebc507e0



Co-authored-by: Vitalii Koshura <lestat.de.lionkur@gmail.com>

Replaces the previous Travis-CI job for OSX. The MacOS runner on Github Actions has a newer perl version installed which forced me to increase version numbers of dependencies in order to get it working.
Deployment is not finished yet.

This needs commit ebc507e0

 as a prerequisite.

Co-authored-by: Vitalii Koshura <lestat.de.lionkur@gmail.com>

This consolidates the different CI builds on one platform that provides support for the major three operating systems we build on (Linux, Windows, MacOS). The nomenclature and syntax is a bit different but it has the same functionality.
This commit introduces the Linux and Windows based workflows. All the build artifacts can now be downloaded from [bintray](https://bintray.com/beta/#/boinc/boinc-ci?tab=files

). The CI workflows run for every pull request, every merge into the master branch and every Sunday around 12:00 (GMT).
Every first Sunday in a month a cleanup Script is run to delete old artifacts from Bintray. Artifacts from closed/merged pull requests get deleted then. Artifacts from weekly builds and merges into the master branch older than 6 months get deleted too.

Co-authored-by: Vitalii Koshura <lestat.de.lionkur@gmail.com>

client: show IPV6 address correctly

web: remove 30-day limit in forum search function

Add Javax Annotation.

The explanation for an error code could be years old.

Python: new constants

Mac: Fixes for building with Xcode 12.2

Mac: Update Build instructions to say that code must be signed under a version of MacOS < 11.0 to allow installing on MacOS < 10.12.

Installer & Readme: automatically get minimum required MacOS version at build time.

client: allow an empty GUI RPC password, but generate alert message

I don't know why this file is in the repo;
it's generated automatically by the configure process

Mac: improvements for Xcode 12 and MacOS 11 Big Sur

Code-sign command-line executables, add info.plist file  with identifier to boinccmd, package as DMG instead of Zip so Apple will "notarize" it.
Set minimum MacOS version to OS 10.9 to eliminate most warnings from Xcode version 12.2.
Fix a problem running BOINC screensaver on MacOS 11 Big Sur when built with Xcode version earlier than Xcode 11.