sarp.snowprofile 1.2.0

New functions
- to compute structural stability threshold sums/ lemons (i.e., computeTSA, computeRTA)
- to flexibly search for specific or generic weak layers and other layers of interest in the profiles (see, findPWL)
- new and improved functionality in plot.snowprofile and plot.snowprofileSet
Restructured snowprofile object classes to better cope with top-down measured manual profiles that potentially have unknown total snow heights.
- Main change: Insert mandatory snowprofile field maxObservedDepth and precisely distinguish that from hs.
- The existing constructors from snowprofile and snowprofileLayers are set up to auto-fill the fields if possible.
- Highlight profiles with unknown hs in plot.snowprofile, add TopDown = "auto"
- include strategy to handle unobserved basal layers
Speed up several bottlenecks that slowed down long computations

sarp.snowprofile 1.1.0

v1.1.0 contains a variety of minor improvements listed below. The version should be free of major bugs, but several improvements are to be done in future versions.
Improvements of snowprofileCaaml:
- Make routine compatible with caaml files from snowpilot.org (fix bugs related to bottom up profiles and workaround namespace issue)
- Originally compatible with caaml files from niviz.org
- Convert undefined grain types
Handle grain types that are undefined in package with validate_snowprofile and reformat_snowprofile
Enable plotting of a temperature profile that is independent of the snow layer grid
writeSmet routine for exporting smet files
Add object classes for snowprofileTests and snowprofileInstabilitySigns
Add new read routine for advanced csv files containing a comprehensive set of profile information, see ?snowprofileCsv_advanced.
Add few new field names to layer structure.
A deriveDatetag function calculates bdates and datetags for snowprofile layers.
A simplifyGtypes function trims unsupported IACS gtype subclasses into their supported main classes (e.g., PPsd –> PP)