GZIPOutInterceptor compiles Patterns constantly; they should be compiled once and reused

GZIPOutInterceptor (lines 193 to 195) use two regular expressions to search for a pattern in a string. They compile the regex on every call, and on every pass through a loop:

Pattern zeroQ = Pattern.compile(";\\s*q=0(?:
.0+)?$");
for (String headerLine : acceptEncodingHeader) {
String[] encodings = headerLine.trim().split("[,\\s],
s");

Compiling patterns is not cheap; please move these patterns (including the String.split() pattern) into the constructor or a static member so we don't keep recompiling the pattern.