remove holland.restore namespace package from mysql-lvm
Merge branch '1.0.6_test'; commit 'edce742'
Merge branch 'master' of github.com:holland-backup/holland
treat section names in a my.cnf case-insensitively

- this makes [client] identical to [CliENt]
improve error handling in xtrabackup plugin

- not catching OSError when xtrabackup is not installed (and innobackupex
  does not exist => ENOENT OSError)
- check for gzip errors without overwriting existing exception
allow innodb-fast-shutdown as a valid mysqld option
don't count MRG or FEDERATED tables when estimating the backup size
perform an iterative purge of backup files in Backup.purge()
various cleanups for new iterative removal purge code

- adding missing stat import
- only use truncate_and_unlink for regular files otherwise
  just use os.unlink
- add debug logging for various steps in the deletion process to
  aid future troubleshooting
Resolved documentation-related bug LP#810561
Fixed mispelling on docs for bug LP#810561
adding util.py to xtrabackup plugin to find current xtrabackup version
extending 'stream' option in xtrabackup to support xbstream+tar

stream is no longer simply a boolean option, but now defaults to 'tar'
'yes' and 'no' are supported for legacy purposes
implement additional streaming options and support non-streaming xtrabackup runs
add tmpdir option to xtrabackup plugin
add additional-options option for xtrabackup plugin
add ibbackup option to xtrabackup plugin
add pre-command option to xtrabackup plugin

This is intended to allow running a schema dump with mysqldump or something
similar prior to running xtrabackup
fix handling of stdout/stderr streams when using non-streaming backups
rename holland.backup.xtrabackup.base -> holland.backup.xtrabackup.plugin