Version 1.1 beta

Among minor fixes and improvements, this version adds:

• The ability to copy and paste marker offsets between samples and genotypes
• The ability to import panels and bin sets from Genmapper files
• The ability to export and import multiple marker panels to/from a single file
• Improved panel export, where markers are sorted by name, and bins by position
• The ability to find and filter samples by the name of a marker
• Tooltips that show the number of samples in folders on mouseover