[STAGING RELEASE] Release of BrainSimulation 1.1.8

Change-Id: Ia73b4940cc7e8df13d2353821886c5f6fb004770

hbp_nrp_music_interface/hbp_nrp_music_interface/version.py

 '''version string - generated by setVersion.sh'''
-VERSION = '1.1.8.dev4'
+VERSION = '1.1.8'

hbp_nrp_music_interface/requirements.txt

 # HBP requirements
-hbp-nrp-cle==1.1.8.dev6
-hbp-nrp-commons==1.1.8.dev6
-hbp-nrp-music-xml==1.1.8.dev4
+hbp-nrp-cle==1.1.8
+hbp-nrp-commons==1.1.8
+hbp-nrp-music-xml==1.1.8
 
 # third party requirements

hbp_nrp_music_xml/hbp_nrp_music_xml/version.py

 '''version string - generated by setVersion.sh'''
-VERSION = '1.1.8.dev4'
+VERSION = '1.1.8'