Bump up MAX_ENV_FLAGS in mod_rewrite.h from the too conservatice limit of

5 to 10 because there are some users out there who always have 5 to 8
variables in one RewriteRule and had to patch mod_rewrite.h for every
release. So 15 should be now more than enough, even for them. (I never
needed more than 4 in my RewriteRules ;-)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81942 13f79535-47bb-0310-9956-ffa450edef68