Concise

- cosmetic changes to get rid of warnings due to external package updates
- https://github.com/gagneurlab/concise/commit/cf9ec50238e5ef3a9fee4a6bcb57ea24bfaca09d
- https://github.com/gagneurlab/concise/commit/761571772050ea1b892c6c3d89c1beebd85430ff
- https://github.com/gagneurlab/concise/commit/9277d15b6f97d923ecc0297c5b40f80dba382a54
- https://github.com/gagneurlab/concise/commit/2c704312203c388e1b2bde165c26ea647011d600

- Added `gtfparse` dependency for parsing the gtf files

- Added more documentation
- hyopt.CompileFN: loss_metric -> optim_metric
- eval_metrics: y,z -> y_true, y_pred arguments
- speedup encodeSequences by 4x

- added more documentation
- ipynb -> docs compilation
- hocomoco motif database added to `concise.data.hocomoco`
- added utility function for position extraction
- fix: hyopt and memoization of data() now works
- implemented seqlogo plot

- fix: required version keras>=2.0.2