Init processes the ResponseLinConfig parameters
config must contain:
"pattern" - Regular Expression Pattern, string
config can optionally contain:
"CASE_INSENSITIVE"
"MULTILINE"
"DOTALL"
"UNICODE_CASE"
"CANON_EQ"
The existance of each within the config object, sets the matching
java.util.regex.Pattern flag on the expression compile
See the Sun documentation for the specific regular expression
syntax used at:
http://java.sun.com/j2se/1.4/docs/api/java/util/regex/Pattern.html