* Common text rendering code was factored out of the linear and matri…

…x renderers into its own resource.

* The ITF-14 encoder's text positioning was fixed.

* The Code 128 encoder's raw mode was fixed.

* The linear and matrix renderers were enhanced to accept top and bottom for the textyalign option.
* The linear and matrix renderers were enhanced with a textdirection option.

* The linear and matrix renderer were enhanced with support for extra…

…textsubspace, extratextsplit and extratextlinegaps options corresponding to the alttext equivalents.

* The linear and matrix renderers were enhanced with alttextsubspace …

…that allows given characters to be substituted for spaces.

* The linear and matrix renderers were enhanced with alttextsplit and alttextlinegaps options that may be used to render multi-line blocks of text.

* The GS1 AI linter was realigned with the latest release of the GS1 …

…Syntax Dictionary.

* The encoder for EAN-8 was changed to forbid the use of a two-digit …

…or five-digit addon unless a permitaddon option is supplied.

* The high-level encoder for Maxicode was replaced with a new algorit…

…hm that may result in significantly shorter messages.

* The Aztec Code encoder was fixed so that punctuation compression works correctly after a binary sequence.

* The GS1 AI linter now reports the mandarory association specificati…

…on that is not being met.

* The baseline of EAN/UPC addons is now correctly aligned with the gu…

…ard bars in the primary symbol.