Local name escaping does not properly encode whitespace characters

ModeShape's Jsr283Encoder class does not properly escape the whitespace characters:

Section 3.2.2 of JSR-283 defines a local name as follows:

LocalName ::= ValidString - SelfOrParent
/* Any ValidString except SelfOrParent */
SelfOrParent ::= '.' | '..'
ValidString ::= ValidChar {ValidChar}
ValidChar ::= XmlChar - InvalidChar
/* Any XmlChar except InvalidChar */
InvalidChar ::= '/' | ':' | '[' | ']' | '|' | '*'
XmlChar ::= /* Any character that matches the Char production at http://www.w3.org/TR/xml/#NT-Char */

where the Char production at http://www.w3.org/TR/xml/#NT-Char is as follows:

Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]	/* any Unicode character, excluding the surrogate blocks, FFFE, and FFFF. */

Note that #x9 is the tab character, #xA is the line feed character, #xD is the carriage return character, and #x20 is the space character.

But ModeShape's Jsr283Encoder is not properly encoding/decoding the whitespace characters.

We will need to address whether this fix will be backward compatible. If not, we may need to provide a switch/repository setting that allows someone to use the older (incorrect) encoding/decoding.