Callbacks ought not to be passed inline to connect_cached.

So mention that fact in the callbacks documentation.
Add the `connect_cached.connected` callback.

It is only called for new connections, right after they connect. This is
because the `connected()` method is not called, for whatever reason.
Note the reason for connect_cached.connected.

It is to do something after a new connection is made. One can use a
`connected` callback, but that's called for both new and reused connections,
which is probably not desirable.
Merge pull request #2 from theory/cb-doctweak

Callbacks ought not to be passed inline to connect_cached.
Added connect_cached.connected Callback PR#3 [David E. Wheeler]

Merge remote-tracking branch 'origin/pr/3'
Clarify wording of log message when err is cleared.

Re http://stackoverflow.com/questions/18983601/why-is-there-a-0-cleared-by-call-to-connect-method-warning-in-dbi-trace
Stop setting err to 0 when creating a new drh
Fix RT#83132 - move DBIstcf* constants to utils export group
Clarification of ReadOnly attribute when driver cannot enforce it
ignore a load of generated files in .gitignore

On Windows, a load of files get generated which the .gitignore does not
ignore
Sorted .gitignore, added test_output_* and MYMETA.*. Added .gdbinit
Fix POD for SQL_BIGINT type constant

It's exported as of DBI-1.54, with the ODBC value.
Merge pull request #5 from ilmari/fix-bigint-pod

Fix POD for SQL_BIGINT type constant
Added Changes for PR5 and polished wordings
Add perl 5.18 to .travis.yml
Added ErrChangeCount attr to fix PrintWarn for STROE etc. RT#89015.
No longer show quote and quote_identifier calls at trace level 1.
Enable PrintWarn by default. (Trial for testing by developers.)
add DBI::Test dependency
add skeleton for DBI plugins for DBI::Test