Discount/MarkUp added

in Orders
issue #166

SKUGroups selection
BugFix at Order
Order.Status add
Order.Status bug fix
Block at Order add
Units add, Refresh button
Units updated, some bugs fixed
Merge branch 'master' into develop
Issue #262, Issue #234
Change .sln
Merge styles from IOS
Change refresh button
Calculate units in Order
Stocks in order add
Add logo of differences languages
Merge branch 'develop_IOS' of https://github.com/BitMobile/solutions into develop_android

Conflicts:
	Demo2/d/resource/app/Translation/en.txt
	Demo2/d/resource/app/Translation/ru.txt
Change Demo2 project
Merge branch 'develop_android' into develop
Change main screen style for Tabs