Changing version number to 1.0.12

ltfatpy/tests/fourier/test_fftindex.py

ltfatpy/tests/fourier/test_fftreal.py

ltfatpy/tests/fourier/test_fftresample.py

ltfatpy/tests/fourier/test_idft.py

ltfatpy/tests/fourier/test_ifftreal.py

ltfatpy/tests/fourier/test_isevenfunction.py

ltfatpy/tests/fourier/test_middlepad.py

ltfatpy/tests/fourier/test_pderiv.py

ltfatpy/tests/fourier/test_pgauss.py

ltfatpy/tests/fourier/test_pherm.py

ltfatpy/tests/fourier/test_psech.py

ltfatpy/tests/gabor/test_dgt.py

ltfatpy/tests/gabor/test_gabdual.py

ltfatpy/tests/gabor/test_gabframediag.py

ltfatpy/tests/gabor/test_gabimagepars.py

ltfatpy/tests/gabor/test_gabphasegrad.py

ltfatpy/tests/gabor/test_gabtight.py

ltfatpy/tests/gabor/test_gabwin.py

ltfatpy/tests/gabor/test_idgt.py

ltfatpy/tests/gabor/test_instfreqplot.py