[Timetools-announce] timetools v1.5.2

[Vladislav <val...@gm...>]

v1.5.2 of timetools is released.

It introduces:
* updates in man pages ;
* definition of barplot methods for SubtimeDataFrame, TimeIntervalDataFrame and TimeInstantDataFrame ;
* enhancements in split methods ;
* more detailed documentation of tapply and split sources ;
* removing of the use of roxygen for documentation (will be completed later).

See README for details.

Vlad