Be more strict about type conversion:

* numbers are no longer auto converted to booleans, use to_boolean or != 0
  * booleans are no longer auto converted to numbers, use to_int
  * strings will soon no longer be auto converted to numbers, use to_int

Added version information ("since 0.3.7") to documentation

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@1006 0fc631ac-6414-0410-93d0-97cfa31319b6

doc/type/boolean.txt

@@ -22,3 +22,5 @@ The operators @or@, @and@ and @xor@ combine two booleans:
 | @true@	@false@		@true@		@false@		@true@
 | @true@	@true@		@true@		@true@		@false@
 
+--See also--
+| [[fun:to_boolean]]		Convert a value to a boolean

doc/type/color.txt

@@ -27,3 +27,6 @@ For example:
 | @rgba(0,0,0,0)@	transparent		<div style="border:1px solid black; width:30px;height:15px;text-align:center;">over</div>
 | @rgba(255,0,0,128)@	transparent red		<div style="border:1px solid black; background:rgb(255,128,128);color:rgb(128,0,0);width:30px;height:15px;text-align:center;">over</div>
 | @rgba(0,0,255,192)@	transparent blue	<div style="border:1px solid black; background:rgb(64,64,255);color:rgb(0,0,192);width:30px;height:15px;text-align:center;">over</div>
+
+--See also--
+| [[fun:to_color]]		Convert any value to a color

doc/type/double.txt

@@ -12,4 +12,5 @@ Conversion from integer to real numbers happens automatically in scripting.
 > 123.1 + 456 * -1
 
 --See also--
-* [[type:int]]
+| [[type:int]]		Integer numbers
+| [[fun:to_real]]	Convert a value to a real number

doc/type/int.txt

@@ -10,4 +10,5 @@ In many cases negative numbers don't make sense, but the program never complains
 > 123 + 456 * -1
 
 --See also--
-* [[type:double]]
+| [[type:double]]		Number type that can contain fractional values.
+| [[fun:to_int]]		Convert a value to an integer number

doc/type/string.txt

@@ -25,10 +25,17 @@ Sections between curly braces are interpreted as script code, that is concatenta
 > "ab{1 + 1}c" == "ab2c"
 This can be nested arbitrarily.
 
-The @+@ operator concatenates strings. Numbers and most other values are automatically converted to strings when needed.
+The @+@ operator concatenates strings. Numbers and most other values are automatically converted to strings when needed. This conversion can be forced with the [[fun:to_string]] function.
 
 Using the @[]@ or @.@ operator characters in a string can be selected. 0 is the first character:
 > "xyz"[0]  ==  "x"
 > "xyz".0   ==  "x"  # same thing
+> "xyz".1   ==  "y"
+> "xyz".2   ==  "z"
 It is an error to select characters outside the string
-> "xyz".10  # error
+> "xyz".10  # error
+
+--See also--
+| [[type:tagged string]]	A string containg tags.
+| [[fun:to_string]]		Convert any value to a [[type:string]]
+