Upstream updates

• monolog
• qrcode

Cache update

Cache updated to Stash 0.14.1 - the RC for the PSR-6 compliant 1.0 version

Several breaks in cache code, so bumping base-requires to 0.2.0 to match XoopsCore dev

Mailer versions

Float within minor version for PHPMailer and Swiftmailer

Syncing with XMF changes

• add Kint
• remove Krumo

Incremental updates

• remove ircmaxell/password-compat (no longer needed)
• adding firebase/php-jwt

PHP 5.5 minimum

Officially support 3 currently supported PHP versions, 5.5, 5.6 and 7.0
Also update asset filter for less files.

Add embed filter support

Add embed/embed

Money

Adds mathiasverraes/money to support accurate currency handling

Tcpdf update

Merge pull request #15 from geekwright/master

Update to tecnickcom/tcpdf rename

Version updates

Merge pull request #14 from geekwright/master

Version updates