All versions of PostgreSQL starting from 8.4 know DIAG_STATEMENT_POSITION and 8.3 is EOL.
Better spec for fallback_application_name.

The spec failed, if /bin/bash was more than 63 characters.
Update travis config.

Cross compile for i386-mingw32 on 1.8.7-p371 and x64-mingw32 on 2.0.0-p0.
Allow 'rake compile' and 'rake gem' on non mercurial repos.

rake-compiler-0.9.0.pre.1 depends on ChangeLog for the compile task.
Merge pull request #8 from larskanis/fix-travis-tests

Fix travis tests