RSS Parser improved.

FeedHive fails to parse some RSS channels - ex egloos blogs.
CASE:
    * Title has '#text' section. But there is NO valid(non-whitespace character) character in it.
    * Instead of '#text', it includes valid title string at 'cdata-section'.
More stable network connection for parsing feed.

Timeout of network connection when reading feed, is increased from 1s to 5s.
Most case 1 sec is enough. But it's not enough for feeds hosted by distant country.