attempt to fix transaction fee problems
update calculation for stake split threshold
change fee to match fee dialog
format units on confirm message, fix block split
add block splitter dust info to confirmation dialog
splitblock convert to double then to int
coin control weight accuracy adjustment
Themes switching change

- When new theme is loaded, first Default theme is applied (to reset
internal qproperty-* styles) - no need to include reset in all themes
anymore
- use of shorter variable $theme-dir which is equivalent of
  $themes-dir/<ThemeName>
Merge branch 'master' of https://github.com/zeewolfik/HyperStake