fix incorrect constructor reference semantics
initialize log level before writing to log
check event type before static_cast
- add progress bar for loading fif file
- add time domain filter coeeficients to cosine filter
- comment progress bar for opening fif file (problems with moving the data loading to a thread and executing the dialog)
Merge pull request #162 from benkay86/master

fix compilation error and minor runtime errors
Merge branch 'master' of https://github.com/mne-tools/mne-cpp
- minor documentation changes to average window class
- start to implement projection (SSP) manager
- minor changes to mainwindow toolbar