show frequency count in tooltip (fixes #248)
captions clariefied as proposed in #250
updating flotr2 library
better ticks on logscale (fixes #249)
do not automatically assign IDs larger than number of nodes (as reported by #244)
better error message when referenced node in frequency does not exist, fixes #244
fixed #245 (very thin bars when only one result in frequency table)
Show corpus name(s) and AQL query in analysis view before running query (fixes #243)
several fixes related to the frequency analysis