Upstream changes: bug fixes.
Package changes: avoid ".." in paths by changing WRKSRC and using
CONFIGURE_DIRS.
Add chunk to configure.in to avoid build failures I was seeing on
NetBSD-current/amd64.
Fix typo, MASTER_SIZE_MOZILLA=MASTER_SITE_MOZILLA.
Fix version number in MASTER_SITES.
Fix MASTER_SITES to contain valid URLs to the nspr distribution.
Netscape Portable Runtime (NSPR) provides a platform-neutral API for system
level and libc like functions. The API is used in the Mozilla client, many of
Netscape/AOL/iPlanet's and other software offerings.