QStringList<->V8

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[core] more Dir functions

used in the-vault

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[cutes] report used path if file is not found

to debug modules loading issues

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[cutes] module.require always takes cached modules

cutes.include accepts boolean parameter allowing to reload module

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
print stack on error

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>