Merge tag '1.7.5'

fixed setting nextBlockId

updated initial peers

set nextBlockId for cached blocks

Use base/quote currency labels in Shapeshift modals

Fix "all types" label translation

Added missing translation keys and fixed translations

changelog update

Add UI for singleton asset issuance

Change log - win xp

Fixed gitlab #14 currency without orders is now counted on dashboard

When asset shares are deleted do not issue "invalid asset" message, instead update the "total available" label in the exchange page with the getAsset value not from the database value which can be outdated

Fix run.bat for Windows XP and Windows 2003 by creating the roaming folder under the user folder in case it does not exist

increased change height increment for ShufflingCreate to 500 blocks

removed exchange booth pre-fork warning