v1.5.0

• Added anlz_sumstats() function to return summary statistics from a GAM and mixed-effects meta-analysis trend model
• show_trndseason() has nms, fils, and cols arguments for trend names in legend, interior fill of points, and color of confidence intervals
• Fix bug for incorrect assignment of scale manual entries for color, fill, and shapes in show_trndseason()
• Fix bug for incorrect use of yromit argument for removing years from plots and trend analysis
• Removed usearrow option from show_trndseason() and replaced with item two above