Sia-UI v1.3.0

For a full list of changes, please see the Sia v1.3.0 release notes.

This is a patch release to accompany the v1.3.0 release of Sia. Several bugs causing instability in the UI were fixed, including bugs leading to 'out of files' errors, and bugs related to improperly starting up and shutting down siad.

In the files tab, we have added support for creating new folders, dragging folders into other folders, and we have fixed several bugs related to renaming and deleting files. The 'Create Allowance' dialog now has correct estimations for the amount of fees, where previously it would often over-estimate by as much as a factor of 10. Several bugs in the 'search' function have been fixed, and the search function will now scan subfolders as well as the current folder.

In the host tab, we have introduced a field for your 'conversion rate'. The conversion rate of a host is the expected percent of renters that will form contracts with your host. Most hosts on the network currently have a very low conversion rate, with the majority of storage being uploaded to a just a small percentage of hosts. By watching your conversion rate, you can make sure that you are in the group of hosts which is regularly getting file contracts. You can increase your conversion rate by lowering prices, adding more storage, or by having >95% uptime for more than 3 months. A full list of conversion rate factors can be found here.

In the wallet tab, we have added support for backing up your wallet and changing your encryption password. As per a suggestion from @mtlynch, whitespace around passwords is now stripped.

Thanks to @moimael, @lolsteve, and @eddiewang for contributing to this release.