Update to sgn-452.0. Fixes an issue with a repetitive measurement download; improve the dialog that adds attributes to trait variables, including preset pull down menus for certain variable attributes; adds support for custom plot order in trial download; adds an interface to edit individual phenotypic values after upload; adds improvements to intercropping and a manual section about intercropping; adds improvements to marker metadata; fixes an issue with the upload of phenotype spreadsheets (simple format without timestamps); fixes an issue with the display of trial analysis results and the fieldmap.

Author: lukasmueller