What's Changed
* Lower zvalue from bad traces to 0 by mscheltienne in https://github.com/mne-tools/mne-qt-browser/pull/171
* Prevent annotations from extending beyond (0, raw.times[-1]) and fix edition of annotation descriptions by mscheltienne in https://github.com/mne-tools/mne-qt-browser/pull/172
* Remove shortcut "h" plotting epoch PTP amp when viewing raw by mscheltienne in https://github.com/mne-tools/mne-qt-browser/pull/174
* Disable time format if we don't have a measurement date by mscheltienne in https://github.com/mne-tools/mne-qt-browser/pull/175
* Fix removal of DC on precomputed data when nan's are present in the array by mscheltienne in https://github.com/mne-tools/mne-qt-browser/pull/176
* Improve deletion of annotation by mscheltienne in https://github.com/mne-tools/mne-qt-browser/pull/173
* MAINT: Patch old MNE ver test by larsoner in https://github.com/mne-tools/mne-qt-browser/pull/177
**Full Changelog**: https://github.com/mne-tools/mne-qt-browser/compare/v0.5.1...v0.5.2