changes

C-Talk is interpreted scripting language with C-like syntax and dynamic type checking. Variables in

--- Release version 1.09 (21.02.2003) -------------------------------------

1. Fix bug with improper used of identifers as hash key.

--- Release version 1.10 (15.05.2003) -------------------------------------

1. Add CtkCompiler::reset method which release all resources allocated during compilation.
This method makes it possible to dynamically generate scripts and run them in C-Talk.

--- Release version 1.11 (11.06.2003) -------------------------------------

1. Fix bug in handling nested function invocations.

--- Release version 1.12 (25.06.2003) -------------------------------------

1. Add ctkParseArguments function for more convenient checking of arguments in primitives. 

--- Release version 1.13 (20.08.2003) -------------------------------------

1. Fix bug in trim() function

--- Release version 1.14 (10.09.2003) -------------------------------------

1. Transparent invocation of DLL functions.

--- Release version 1.15 (15.01.2004) -------------------------------------

1. Fix bug in "try" clause

--- Release version 1.16 (07.02.2004) -------------------------------------
1. Fix bug in getKeys functions

--- Release version 1.17 (19.03.2004) -------------------------------------
1. Fix bug in getTypeName() function
2. Fix bug real() function

--- Release version 1.18 (17.01.2005) -------------------------------------
1. Make it posisble to initialize array without specifying keys: ["a", "b", "c"]
2. Fix bug in grammar (^= operator)

--- Release version 1.19 (25.01.2005) -------------------------------------
1. Fix bug in C-Talk grammar for unary operators

--- Release version 1.20 (04.03.2005) -------------------------------------
1. Change implementation of all set operators so that "x op= y" be equalent to "x = x op y"

--- Release version 1.21 (21.03.2005) -------------------------------------
1. Fix problems with disabled GC when primitive method invokes C-Talk method