Release v0.027

Only some minor fixes, but one bugfix that could cause the test to fail.

• Updated the version of Path::Tiny we rely on to fix a potential test failure.
• Add the --delete <table> option to the ysql utility. This allows you to delete from a table, optionally adding a where clause option (--where <clause>).
• Add IPv4 and IPv6 patterns to the ygrok utility. These were already provided by the Regexp::Common module, so best to use the tested regular expressions

Full changelog below.

• use ipv4 and ipv6 patterns from Regexp::Common
• update Path::Tiny version to fix File::Path issue (#137)
• expand sql helpers docs to link related helpers (#136)
• add the --delete helper option to ysql (#136)