correct varchar/nvarchar param length
declaration is 2x smaler than data
no need for huge buffer if value is null
Ignore (temp) coffee files.
0.1.5
Bump current version in readme.
Merge pull request #99 from vavere/varchar-nvarchar-param

varchar nvarchar param length calculation
Merge branch 'master' of git://github.com/pekim/tedious