support for searching for value

Signed-off-by: Andreas Zöllner <andi@go-for-fun.de>
support for files with spaces instead of tabs (4 spaces = 1 tab)

Signed-off-by: Andreas Zöllner <andi@go-for-fun.de>
removed unnecessary NSLogs

Signed-off-by: Andreas Zöllner <andi@go-for-fun.de>