v 0.2.6 (2016_01_17) : reduced the number of global constants
o removed FULLNAME_DATABASE, TARGET_PATH,SOURCE_PATH, SOURCENAME_MAXLENGTH,
TAGSSTR_MAXLENGTH, HASHID_MAXLENGTH and TARGETNAME_MAXLENGTH constants.
o fixed tests/tests.py + tests/cfgfile5.ini ("c.5" -> "^c.5$")
o the value of DTIME_FORMAT_LENGTH is now automatically computed .
o improved the documentation in README.md and chart.txt
o improved messages in various functions
o updated pylintrc (max-locals=16)
o 6 tests, pylint=10.0 for the three Python scripts
o version packaged and sent to Pypi (https://pypi.python.org/pypi/Katal)