simplify and optimize parsing of percentage and float values.
simplify and optimize parsing of percentage and float values.

Use strtod() and avoid couple of walks. Of course the walks were quite
small and it will not bring noticeable improvements, but code is
smaller and easier to read, so why not?



git-svn-id: 24a995eca3b83137dd7eab3408044d7832e202f7@46530 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

antognolli/Evas,antognolli/Evas,antognolli/Evas,antognolli/Evas