Fix non-exhaustive pattern
Clean unused import
Add test: event sequence with multiple stops
Revamped CLI parsing

Arg parser rewritten with CmdArgs.Explicit
New report args supported (refs #6 )
Add: Reports structure + TotalTime report
Add: Filtering support in report generation

Filter by project, activity or tag
Add version information
Merge pull request #9 from divarvel/basic-cli

Switch to CmdArgs.Explicit
Merge branch 'master' into ghc-wall

Conflicts:
	src/Hammertime/Main.hs
Fix imports
Fix unused / shadowed variables
Fix type annotations