Update version 1.4.0 -> 1.5.0

Fixes
-----
- Docstring formatting fixes #387
- Chain strength documentation fixes #391
- Fix broken documentation links #396

Features
--------
* `DWaveCliqueSampler` can fail over #395
* Add `MockLeapHybridDQMSampler` #399

Author: arcondello

dwave/system/package_info.py

@@ -14,7 +14,7 @@
 
 __all__ = ['__version__', '__author__', '__authoremail__', '__description__']
 
-__version__ = '1.4.0'
+__version__ = '1.5.0'
 __author__ = 'D-Wave Systems Inc.'
 __authoremail__ = '[email protected]'
 __description__ = 'All things D-Wave System.'