updated readme

Author: raydac

README.md

@@ -16,6 +16,8 @@ For instance I have been very actively using the framework in [the ZX-Poly emula
 
 # Change log
 - **1.4.0 (under development)**
+  - added type `val` which allows to create virtual field with calculated value, can play role of variable in scripts
+  - `val` and `var` have been added into reserved words and can't be used as field names
   - added field `outByteOrder` attribute to `Bin` annotation, it affects logic of `JBBPOut#Bin` for output of annotated objects which fields should be saved with different byte order
   - removed deprecated method `JBBPFinderException#getNameOrPath`
   - added [auxiliary class to build JBBP script](https://github.com/raydac/java-binary-block-parser/blob/master/jbbp/src/main/java/com/igormaznitsa/jbbp/utils/JBBPDslBuilder.java)

changelog.txt

@@ -1,6 +1,8 @@
 Change log
 --------------------------
 1.4.0
+ - added type `val` which allows to create virtual field with calculated value, can play role of variable in scripts
+ - `val` and `var` have been added into reserved words and can't be used as field names
  - added field `outByteOrder` attribute to `Bin` annotation, it affects logic of `JBBPOut#Bin` for output of annotated objects which fields should be saved with different byte order
  - removed deprecated method `JBBPFinderException#getNameOrPath`
  - added [auxiliary class to build JBBP script](https://github.com/raydac/java-binary-block-parser/blob/master/jbbp/src/main/java/com/igormaznitsa/jbbp/utils/JBBPDslBuilder.java)