Turn off autobrief for pages in the documentation, do a pass for naming structure.

--HG--
rename : src/docs/checkpoints.dox => src/docs/checkpoint.dox
rename : src/docs/custom_data.dox => src/docs/custom-data-sources.dox
rename : src/docs/data_sources.dox => src/docs/data-sources.dox
rename : src/docs/config-file.dox => src/docs/database-config.dox
rename : src/docs/error.dox => src/docs/error-handling.dox
rename : src/docs/tune-compress.dox => src/docs/tune-compression.dox
rename : src/docs/tune-system-buffer.dox => src/docs/tune-system-buffer-cache.dox
rename : src/docs/tune-huge-page.dox => src/docs/tune-transparent-huge-pages.dox
Merge pull request #1184 from wiredtiger/doc-cleanup-autobrief

Turn off autobrief for pages in the documentation, do a pass for naming structure