[sales invoice] [fetching] fetch pos values and customer address contact values
Merge branch 'master' into pos_fetch
[fixes] about us settings
Merge branch 'pos_fetch'
[sales invoice] [fetching] fetch customer info, pos settings and item details if not fetched
Merge branch 'master' into pos_fetch
[stock entry] [test] fixes in test cases
[sales common] [fix] minor fix in validation message
[pos setting] [permission] removed system manager permission