New release with `ppl7::AssocArray.getAssocArray()`

[jelu]

Can you make a new release?

g++ -DHAVE_CONFIG_H -I. -I../../src    -I../../src -I../..  -g -O2   -I/usr/local/include  -pthread -I/usr/local/include -MT SampleSensorData.o -MD -MP -MF $depbase.Tpo -c -o SampleSensorData.o ../../src/SampleSensorData.cpp &&\
mv -f $depbase.Tpo $depbase.Po
../../src/SampleSensorData.cpp: In member function ‘void SystemStat::importFromArray(const ppl7::AssocArray&)’:
../../src/SampleSensorData.cpp:336:44: error: ‘const class ppl7::AssocArray’ has no member named ‘getAssocArray’; did you mean ‘AssocArray’?
  const ppl7::AssocArray &data_if_list=data.getAssocArray("interface");
                                            ^~~~~~~~~~~~~
                                            AssocArray
Makefile:575: recipe for target 'SampleSensorData.o' failed