Fix bake templates so they use current i18n markers.

Fixes #4321
Remove SQL from debug output for a query object.

Having the SQL as part of the debug output can easily cause error pages
to be corrupted if a query is an argument to any function in a stack
trace. Given how the new ORM works, this will happen very frequently.
Automatically decompress gzip response bodies when possible.

If gzinflate() exists and a gzip response body is encountered, the
response body should automatically be decompressed.
Fix failing tests.

Because queries are not compiled when debugInfo is run, the parameters
may not be complete.
Fix missing property definition.
Re-add SQL to Query exports.

More than just Query objects can raise exceptions in their __debugInfo
method. Debugger should be catching and gracefully handling that
situation.
Exceptions need to be instances.
Merge pull request #4323 from cakephp/issue-4321

Fix several small issues