Fixed example for adding a header row in README.md
Merge tag '2.1.4'

updated README.md
Fixed bug in CellEntry::setCellLocation() regex for extracting the cell location only handled single digits but now supports any row/column
Merge tag '2.1.5'

fixed bug in regex in CellEntry::setCellLocation
Fixed typo in README.md
Merge pull request #15 from magnetikonline/patch-1

Fixed typo in README.md
Fixed issue #18 (There was a bug in SpreadsheetService::getSpreadsheetById(), It was passing an xml string to the Spreadsheet constructor instead of a SimpleXMLElement object) and updated README with composer instructions
Merge branch 'master' into dev-stream-request