Replace use of values as a variable name

src/ExcelReaders.jl

@@ -143,9 +143,9 @@ function readxl(::Type{DataFrame}, file::ExcelFile, sheetname::String, startrow:
 
 	for i=1:ncol
 		if header
-			values = data[2:end,i]
+			vals = data[2:end,i]
 		else
-			values = data[:,i]
+			vals = data[:,i]
 		end
 
 		# Check whether all non-NA values in this column
@@ -154,7 +154,7 @@ function readxl(::Type{DataFrame}, file::ExcelFile, sheetname::String, startrow:
 		found_first_type = false
 		type_of_el = Any
 		NAs_present = false
-		for val=values
+		for val=vals
 			if !found_first_type
 				if !isna(val)
 					type_of_el = typeof(val)
@@ -178,18 +178,18 @@ function readxl(::Type{DataFrame}, file::ExcelFile, sheetname::String, startrow:
 			if NAs_present
 				# TODO use the following line instead of the shim once upstream
 				# bug is fixed
-				#columns[i] = convert(DataArray{type_of_el},values)
-				shim_newarray = DataArray(type_of_el, length(values))
-				for l=1:length(values)
-					shim_newarray[l] = values[l]
+				#columns[i] = convert(DataArray{type_of_el},vals)
+				shim_newarray = DataArray(type_of_el, length(vals))
+				for l=1:length(vals)
+					shim_newarray[l] = vals[l]
 				end
 				columns[i] = shim_newarray
 			else
 				# TODO Decide whether this should be converted to Array instead of DataArray
-				columns[i] = convert(DataArray{type_of_el},values)
+				columns[i] = convert(DataArray{type_of_el},vals)
 			end
 		else
-			columns[i] = values
+			columns[i] = vals
 		end
 	end