Set version to 1.0.0
Renamed lastfmgrabber namespace to bestversion
Set _WIN32_WINNT=0x501 in preprocessor definitions
Set include directories for 64 bit build ATL helpers project.. just in case
Use a static const t_size for pfc_infinite to avoid warnings
Fix a bunch of warnings about unused parameters
Added RapidJsonWrapper.h to wrap rapidjson and disable warnings
When filtering tracks by artist, also consider the album artist tag
Fix issues arising from not checking for % characters in tags before using printf

Fixes #14
Fix best version replacement not working when track has no artist tag.

Previously only the artist tag was looked at. Now uses album artist as
backup.
Also when checking a list of tracks for a main artist for last.fm lookup,
album artist is used in absence of artist.

Fixes #15
Create playlist restore point before replacing with best version.

Fixes #11
Set version to 1.0.1