Fix toolbar hints

Fix #28.
Merge rev 17
Merge rev 18
Merge rev 19
avoid compiler warning about ambiguous type conversion
Fix project files
Fix memory leak detected by Cppcheck
Merge pull request #32 from tbeu/fix-hints

Fix toolbar hints
Merge pull request #33 from tbeu/update-from-NppFTP

Update from NppFTP SVN
Merge pull request #34 from tbeu/fix-projects

Fix project files
Merge pull request #35 from tbeu/fix-mem-leak

Fix memory leak detected by Cppcheck