BDL 1.10 new features

Features added in 1.10 releases of the Genero Business Development Language.

Table 1. Core language
Overview	Reference
The language supports now built-in classes, a new object-oriented way to program in BDL.	See OOP support.
`CONSTANT` keyword to define constants in your programs.	See Constants.
The language now supports dynamic arrays with automatic memory allocation.	See Dynamic arrays.
A set of XML Utilities are provided in the runtime library as built-in classes.	See The om package.
The `STRING` data type can be used to manipulate character strings without a length limit as with `CHAR`/`VARCHAR`.	See STRING.

Table 2. User interface
Overview	Reference
The Dynamic User Interface is the major new concept in Genero. It is the basement for the new graphical user interface.	See User interface basics.
Compared to classic IBM Informix 4gl, interactive instructions such as `INPUT`, `DISPLAY ARRAY`, have been extended with new control blocks and control instructions.	See Dialog instructions.
Form specification files (.per) support now extended layout definition with the `LAYOUT` section.	See Form definitions.
Defining Window Containers (a.k.a. MDI) is a simple way to group programs.	See Window containers (WCI).

Table 3. SQL databases
Overview	Reference
The new `SCHEMA` instruction allows you to specific a database schema, without having an implicit connection, when the program executes.	See Database schema.