Search field added

Just type to filter all journals by title.

Position and layout are not too convincing...
Search: implemented bibliocoll's improvements
External link in iframe

Nice way to link (via issn) to any external page or a journal specific
landing page. 

Currently hardcoded to TUBfind (our PrimoCentral index).
Better iframe handling
Fetch additional info to csv from JT
Quick & dirty version to fetch some more infos to input.csv (creates
input.new.csv). 
Todo: Some versioning (e.g. always use input.org.csv and recreate input
csv)
Remove any control chars from JournalTOCs response
Improvements on fetching journals updates and metadata
- Should work out-of-the-box
- Fetches metadata and appends it to csv
- Fetches current issues from JournalToc
- Fetches current issues from Crossref, does some guesswork
- Keeps Backups of csv files
Make displaying Tagcloud and metadata optional
Added some option to config.ini so stuff can be switched off and on
there
Small language updates
merge from tzeumer fork