#38 Quote escaping issues

[Adam Faulconbridge]

Due to hang-overs from the MageTab spec, Limpopo SampleTab accepts lines like the following as valid:

[MSI]
Submission Title "some thing is a dummy"
Submission Identifier AnIdent

[MSI]
Submission Title "some
thing is a dummy"
Submission Identifier AnIdent

Due to implementation, the quotes must be the first and last characters in a tab-delimited cell. This leads to unexpected outcomes in the following case:

[MSI]
Submission Title "some thing" is a dummy
Submission Identifier AnIdent

and accepts the following as valid when it should not be:

[MSI]
Submission Title "some thing" is a dummy"
Submission Identifier AnIdent