pr-read-in-memory
Merge pull request #27 from bronze1man/pr-read-in-memory

pr-read-in-memory
Convert TestOpenFile to gocheck.
Convert TestCreateSheet.
Convert TestGetStyleWithFonts.
Convert TestGetStyleWithFills
Convert TestGetStyleWithBorders
Convert TestReadSharedStringsFromZipFile
Convert TestReadStylesFromZipFile
Convert TestReadWorkbookRelationsFromZipFile
Convert TestReadWorkbookRelationsFromZipFile
Convert testletterstonumeric
Convert TestLetterOnlyMapFunction
Convert TestIntOnlyMapFunction
Convert TestGetCoordsFromCellIDString
Convert TestGetMaxMinFromDimensionRef
Convert TestGetRangeFromString
Convert TestMakeRowFromSpan
Convert TestReadRowsFromSheet
Convert TestReadRowsFromSheetWithLeadingEmptyRows