send_nsca.cfg file for nagios notifier
adding xtrabackup support (via innobacupex utility)
fixed explanation of MySQL backup_engine
Properly escape special characters in MySQL credentials

Previously the code could handle almost all special characters by surrounding them with a single quotes.
Unfortunately that doesn't work if the credentials contain a single quote.
Ruby already includes the shellwords library which properly escape a string for use in a shell command.
Fix typo
Add template for Slack notifier
Add Slack notifier to CLI spec
Merge pull request #561 from cssu/master

Add template for Slack notifier
Adding param to specify which file to be used for writing logs
Merge pull request #557 from krautcomputing/fix_typo

Fixed typo in PostgreSQL database adapter.
Add Flowdock notifier
Merge pull request #543 from jemcgee/master

send_nsca.cfg file for nagios notifier
Merge pull request #552 from patatepartie/master

Properly escape special characters in MySQL credentials
Add travis build badge to README
Sorry I have some aggressive white space trimmers
Merge pull request #563 from marutinandanpandya/mnp_1

:log_file param
Fix twitter configuration. Fixes #525
Merge pull request #547 from chesterbr/innobackupex

Percona XtraBackup (innobackupex) for MySQL
added zabbix notifier
Merge pull request #512 from mrsn/master

Added Zabbix Notifier