Fixed missing version number in v3.5.1.

Security update. jQuery vulnerability CVE-2020-11022 and CVE-2020-11023.
#972.

Fixes #787.

Changelog:

• 932c695: Fixed selected view in graph.
• 6aca2e1: Fixed auto refresh with wrong layout.
• 9f3e140: Changed static file path to new path.
• 29adce2: Removed old static directory.

Changelog:

• b399327: Fixed week/month/year graph.
• 4ebe934: Added timeout to services.
• 8342a97: Changed auto-refresh_help to uniform name.
• 5d668b7: Fixed auto-refresh.
• #777: Fix pushover_status checkbox population from config.

Changelog:

• 1b0d86b: Fixed wrong upgrade query and added forgotten version_compare.

Changelog:

• #733: Added catalan ca_ES.lang.php.
• 6c1763e: Updated table style.
• #770: Changed last_output column to TEXT and restricted to 5000 characters.

Changelog:

• #741: Truncate server output.
• accd556: Fixed typo in es_ES.lang.php.
• #747: Added XML to requirements.
• #740: Update es_ES.lang.php.
• #752: Update fr_FR.lang.php.
• 86c0a58: Added server_id as id (fixes #738).
• be9e3f7: Composer update.
• 8cc8a0d: Updated wget to curl.
• #662: Updated Japanese Translations.
• #697: Adding verbosity for cURL.
• #695: Allow HTTP/2 status responses.
• #703: Update es_ES.lang.php.
• 5b0fba6: Add button when there are no servers.
• 5511cd5: Added faq for #719.
• fcd12d9: Updated bootstrap to 4.3.1.
• 6ca3615: Added missing field to email config.
• 3e1b912: Updated Bootstrap-select to v1.13.10.
• cba09ed: Manifest, Sw.js - Fixed path to files.
• f70dacb: Added sw.js and manifest.
• 59be9f2: Added beter support for use without Javascript.
• 9915a11: Improved accessibility.
• 0025af2: Updated Bootstrap-select to v1.13.9.
• fea3289: Added missing offline duration.
• 560dc8a: Makefile - Adding an input to choose macOS as the current OS.
• 5e5281d: Fixing #665.
• 9cdafc9: Updated useragent to Github URL.
• cf2f6b0: Changed database column to TEXT.
• 6c14709: Updated default template (fixing #685).
• 5424976: Fixed PHPMailer 6.0.5 Vulnerability (resolving #680).
• 2c6ef08: Added noopener and updated download link to Github releases.
• #656: Downgraded symfony/filesystem to ~3.4 (PHP 5.5.9 compatible) and added 7.0.8 as minimal PHP7 version.
• #620: Added updater.sh shell script.
• #653: Fixes wrong default type in upgrade/install query.
• #642: Added post field as addition to #631.
• #644: Fixed urlencoding in Nexmo message
• #639: Added combined notifications.
• #626: Added redirect check.
• #627: Latest server output, error and output during a failure will be saved and are shown on the server page.
• #631: Added option to specify the request method.
• #628: Added the option to mark specific HTTP status codes as online.
• #640: Removed () after last offline value when the last offline duration is unknown.
• #637: Added php extensions to composer required list, spelling fixes in changelog and composer update.
• #635: Changed server order on ?&mod=user&action=edit&id=x.
• #634: Changed ' to " in sql query, both were used.
• #629: Fix bug that made it impossible to check rdp:// and fixed port update.
• b49659f: Added question to notification faq about not receiving notifications.
• ef28908: Indentation fix.
• #605: Added Norwegian language.
• f6173d4: Added license to composer.json file.