Don't forget std:: namespace for make_pair
Default argument value should only be set in declaration, not in definition
Merge pull request #90 from AMDmi3/clang-build-fixes

Clang build fixes
Added diagnostic messages for broken elements.
Merge branch 'master' of github.com:drolbr/Overpass-API
Adapted the diagnostic messages.
Adapted the diagnostic messages.
Merge branch 'master' into onthefly-augmented-diffs
Hedged error to appear as error messages instead of crashing.