Fixed the default for the web server port in rb-site.
Fixed the default for the web server port in rb-site.

The default was an integer, which broke generation of some files. It's
now a string, like all other parameters.

brennie/reviewboard,custode/reviewboard,chipx86/reviewboard,bkochendorfer/reviewboard,KnowNo/reviewboard,sgallagher/reviewboard,1tush/reviewboard,beol/reviewboard,sgallagher/reviewboard,brennie/reviewboard,KnowNo/reviewboard,sgallagher/reviewboard,bkochendorfer/reviewboard,beol/reviewboard,davidt/reviewboard,KnowNo/reviewboard,custode/reviewboard,brennie/reviewboard,davidt/reviewboard,1tush/reviewboard,reviewboard/reviewboard,bkochendorfer/reviewboard,1tush/reviewboard,1tush/reviewboard,KnowNo/reviewboard,beol/reviewboard,brennie/reviewboard,reviewboard/reviewboard,davidt/reviewboard,chipx86/reviewboard,davidt/reviewboard,1tush/reviewboard,custode/reviewboard,chipx86/reviewboard,bkochendorfer/reviewboard,chipx86/reviewboard,sgallagher/reviewboard,custode/reviewboard,1tush/reviewboard,1tush/reviewboard,reviewboard/reviewboard,1tush/reviewboard,1tush/reviewboard,reviewboard/reviewboard,beol/reviewboard