bumped version number to 0.4.4
updated dipylonreader.project
Merge branch 'release-0.4.4' into dev
0.4.4 (2014_10_03)
o feature56, feature65 : added toolbars' buttons +/- : the zoom value is stored
             in the qsettings file; TextEditor is now the mother class of
             CommentaryEditor and of SourceEditor.
o feature60, feature61 : added a popup menu to the UI.
o feature62, feature67 : cpplint.py version 3
o +feature66, feature64, feature63, feature58, feature59, feature57, feature55
code quality : 175 errors according to cpplint.py