closes #133
Merge pull request #135 from xrotwang/issue133

closes #133
fixes #136
added more tests
implemented support for config files, logging and progress bars.
fixed problems with py3 py2 compatibility
fixed py3 compatibility issues.
fixed problems with py3 py2 compatibility
Merge pull request #138 from xrotwang/config

implemented support for config files, logging and progress bars.
Merge remote-tracking branch 'upstream/master'
switch type check to isinstance formula
updated handling of wrong entries in parser.add_entries
refactored logging such that predefined messages are replaced by utility functions or inlined in logger calls
error in test_lexstat module due to non-imported unicode_string_literals
updated but actually unmodified lexstat version
jetze aber: modified pairwise.py, added unicode_literals and removed wrong error code
removed debug-printouts from lexstat.py
testing how adding 'str' to basic types to be checked modifies travis output
add str to testing in align.py which is redundant in py3 but should solve the issue in py2
Merge pull request #139 from LinguList/master

Adding tests for all alignment methods and the sound class module