This reverts commit 2d33c20231 and
reapplies various patches for memory leaks.
The reason for the revert was a bug for a maximum duration interval
which caused sleep_for() to cause unpredictable behavior.
In file included from src/modules/upower/upower.cpp:1:
include/modules/upower/upower.hpp:25:16: error: no template named 'unordered_map' in namespace 'std'
typedef std::unordered_map<std::string, UpDevice *> Devices;
~~~~~^
In file included from src/modules/upower/upower_tooltip.cpp:1:
include/modules/upower/upower_tooltip.hpp:13:16: error: no template named 'unordered_map' in namespace 'std'
typedef std::unordered_map<std::string, UpDevice*> Devices;
~~~~~^
