StringBuilder fixes; New attributes; New default template variables
-AutoLS
--Added "Head" and "Footer" variable to default template
--New Attributes "AsLossyAscii", "Utf8Count"
--Changed "autols_pattern_path" to "autols_template_path"
-StringBuilder
--Fixed strbEnsureContinuousCapacity (taking min instead of max)
--Added strbTransAsLossyAscii method
--Fixed changing to next chain too early
-NGXStringBuilder
--Added method strbNgxUtf8Length