fix(setLogicalName): Affect logical name only if not an empty string or null (refs #5254)
feat(viewfolder): Show number of docs displayed and total number of docs (refs #5140)
Merge pull request #1381 from eguaj/3.2-A5140

feat(viewfolder): Show number of docs displayed and total number of docs (closes #5140)
Merge pull request #1382 from eguaj/3.2-A5254

fix(setLogicalName): Affect logical name only if not an empty string or null (fixes #5254)
fix(Doc): Check for signed int32 overflow (refs #5217)

Postgresql integer type is a signed int32, so integer attributes should
have values between -2147483648 and +2147483647.