Extract DiskQuota database field sizes into constants
Increase Layer name field in DiscQuota DB to 128 chars
Document Disk quota layer name size limit
Merge pull request #259 from smithkm/dq-namelength-1.5

Backport increased limit on size of layer name in DiskQuota JDBC.
Merge pull request #2 from GeoWebCache/1.5.x

Increased limit on size of layer name in DiskQuota JDBC fixes #323