Merge branch 'segmentation'
updated old readme
Merge branch 'segmentation'
remove some warnings
Arbitrary slicing, 2nd attempt.

- Instead of rotation around z-axis followed by rotation around y-axis we now rotate around a single newly calculated axis on every node placement.
- TODO: Currently rotation angle is calculated based on the last 5 recentering positions. Usability test needed here.
- TODO: Buttons in skeleton vp to face xy-/xz-/yz-plane should be adapted to arbitrary slicing to face the rotated vps respectively.
- While fixing rotation, I discovered a bug concerning texture loading in arbitrary mode: hold key K (rotation around z-axis) and you'll notice that in the lower left vp the centered vertical stripe remains black at some angles.
compress the snappy cubes
with the fastest compression, the introduced delay seems acceptable
(500 → 750 ms with 60 cubes)
resulting annotation files are 5 times smaller
improve oc slice extraction, remove second pass, only lookup subobject id once
selection emphasis is skipped on cube edge voxels
the perfomance roughly increased by 100 %
unify nomral and picking oc slice
fix the selection + comment change bug
when search was enabled, changing a comment to something which didn’t match the search pattern – i.e. it should be hidden after the comment change – crashed.
Because while removing one row, the whole table got recreated, but with one row less, which – at least in the case with only one row in the table – left the remove function with no row to delete anymore.
selectionProtection to the rescue
also fixed the comment change case in general – rows now get properly added/removed with respect to the search pattern
update qt ppa
use python2 instead of the python3 default
install all the qt packages for PythonQt_QtAll
reduce travis memory usage
FTP Retries
PythonQt Thingy
cubing scripts
Merge branch 'master' of https://github.com/knossos-project/knossos
erroneously, skeleton work mode initialization was missing in segmentation mode
segmentation color picking bounds checking
deleted trees were still selected
the active tree is now kept after the last node was deleted
remove deleteActive[Node|Tree]
Exchanged QTime with QElapsedTimer so tracing time can't get negative. See Issue #35