This update fixes the following issues with postgresql-plr:
- Update to upstream 8.0.15 bugfix
+ Update for PostgreSQL 9.3 compatibility
+ Ensure certain errors in R code do not crash postgres
+ Unbreak compilation with older versions of postgres not having rangetypes
+ Allow use of OUT parameters

- Upgrade to 8.3.0.14
+ Remove hack to take signal back from R interpreter
+ Set R_SignalHandlers = 0, the proper way to prevent R from taking signals in the first place
+ As of pg9.2 the syntax "LANGUAGE 'C'" no longer works. Use "LANGUAGE C" instead.
+ The MacPorts installation has the header filed distributed across two different directories, so there is no single "rincludedir" to query from pkg-config. Instead, do it the proper way and ask pkg-config for the cflags, which should work for all installation variants.