Update package to depend on recent elfeed 3.4.1 rather than old elfeed 1.1.1

[PauloPhagula]

Hi,

just as said in the subject, it would be great if this package would be updated as to use a more recent version like the latest elfeed 3.4.1 rather than the now old 1.1.1

elfeed-org/elfeed-org.el

Line 6 in 6652fbd

;; Package-Requires : ((elfeed "1.1.1") (org "8.2.7") (dash "2.10.0") (s "1.9.0") (cl-lib "0.5"))