Added GUID expression to SQLite platform
Added test for SQLite GUID implementation
Merge pull request #253 from jankramer/add-sqlite-guid

Added GUID expression to SQLite platform
fix SQLServerPlatform GUID expression
Merge pull request #254 from deeky666/fix-sqlsrv-guid-expression

fix SQLServerPlatform GUID expression
fix typo in AbstractPlatform phpDocs
Merge pull request #255 from deeky666/fix-typo-abstractplatform

fix typo in AbstractPlatform phpDocs