First draft of implementation, tests needed.
Added test for MinLinkRefreshTime.
Moved MinLinkRefreshTime into Dispatcher substructure of Config.
fetcher: do not log parse errors at Error level

One parse error for parsing <object>/<embed> tags was logging at the
log4go.Error level. Set it to debug.
Merge pull request #72 from iParadigms/parse-err-debug

fetcher: do not log parse errors at Error level
Merge branch 'master' into ReMinTime
Merge pull request #71 from iParadigms/ReMinTime

Re min time
Merge branch 'master' into RegexSearch