add session creation file to file store (#139)
some SessionSchedule refactoring, plus new tests and function stubs (#139/#144/#151)
corrections to testAdjustDateTime
implemented SessionSchedule.GetSessionRange for daily sessions
implemented SessionSchedule.GetSessionRange for weekly sessions
slight refactor of SessionSchedule.GetSessionRange
SessionSchedule.IsSameSession
SessionSchedule.IsNewSession and .NextEndTime
remove some bad-idea functions
minor doc comment correction
fix an unused-variable warning
fixes for session schedule start/stop behaviors
Merge branch 'sessionschedule' of github.com:gbirchmeier/quickfixn into 1.4.0beta

Conflicts:
	UnitTests/SessionScheduleTests.cs