added series IMDB id
added episode first aired
added mptvseries lookup when editing a single tag
added submodule MediaPortal.OnlineLibraries
added nuget package download
updated onlinelibs
first implementation of the tvdb lookup
improved TvDb lookup
extended series infos
added music video tab
cleanup empty tags (no simple tags)
added certification, keywords, network, tagline and TMDB
updated tv gui and importer
improved settings management
added TMDB lookup
added open possibility to open the TMDB or IMDB website
improved build scripts
fixed MPTVSeries lookup if filename contains an apostrophe