Use custom vendor dir

The plugin provides its own versions of libraries normally included in
DokuWiki but that might be missing in old installs. Since modern
DokuWiki installs will autoload from plu

Use custom vendor dir

The plugin provides its own versions of libraries normally included in
DokuWiki but that might be missing in old installs. Since modern
DokuWiki installs will autoload from plugin vendor dirs, DokuWiki might
have used the libs from this plugin instead of the bundled ones. This is
usually not a problem but there might be version differences...

This patch renames the vendor directory, hiding it from DokuWiki's
autoloading.

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some code style cleanups

always start fresh. fixes #126

Delete any previous downloads before starting the upgrade from the admin
screen.

refactor to add CLI

avoid initialization error on php8+ fixes #223

updated minimum PHP requirements

Adjust version number when we compare versions

Plugin alway shows an available upgrade. This is cause when we compare full version strings, they differ:
- $tgzversion value is: 2020-07-29 "Hogfathe

Adjust version number when we compare versions

Plugin alway shows an available upgrade. This is cause when we compare full version strings, they differ:
- $tgzversion value is: 2020-07-29 "Hogfather"
- $version value is: Release 2020-07-29 "Hogfather"

This fix use the getVersionData() function to ignore the "Release" string added using getVersion() function.

Also, $tgzversion value may contain spaces at the end. So we add a trim() for both variables.

Fix #201
The bug was introduced in commit 27c6a3e.

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when dates are the same, but full version strings differ update anyway

more relaxed version parsing #190

This also adds tests for it.

fix version recognition for non-RCs #186

This was broken in 29c1ab7455581d75e9e58b69565c6132f4821db6

adjust version check for RCs. fixes #186

make _say() a static method. fixes #143

reset opcache when done

See splitbrain/dokuwiki#2369

safemode is gone, we no longer care for it

another fix for the fix of #138

namespace custom HTTPClient, fixes #138

added a more recent HTTPclient version. should fix #136

try to work around some kinks on case insensitive file systems

We now delete existing files before copying, which should ensure the new
file has the case we intended.

Before deleting deprecated fil

try to work around some kinks on case insensitive file systems

We now delete existing files before copying, which should ensure the new
file has the case we intended.

Before deleting deprecated files, we make sure the case is an exact
match.

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adjust php version test

This needs to be done better

fixed class usage

make it more clear that errors are bad

use post form and buttons

added missing type attribute

fixed version warning (vsprintf() Too few arguments)

check for correct PHP version