Replace home picture and favicon by JHipster logo

Fix #671
Fix copy of images

Fix #671
Merge branch 'master' of github.com:ggaulard/generator-jhipster into ggaulard-master
Fix chrome warning by defining more complete media query for retina display like
Add comment to explain waiting for autoprefixer update
#679 Missing oauth declaration

See #679
Merge pull request #680 from dwelch2344/master

#679 Missing oauth proxy in gulpfile
Merge pull request #676 from ggaulard/master

Replace home picture and favicon by JHipster logo
First version with one-to-one and many-to-many relationships. UI still needs to be worked on, as well as edge cases.

Work in progress #665 #670
Merge branch 'ggaulard-master'
Capitalize field names
Merge pull request #683 from gzsombor/capitalize-field-names

Capitalize field names
Update JS dependencies
Merge branch 'master' of github.com:jhipster/generator-jhipster
Added UI & tweaks for many-to-many relationships (one-to-one relationships have no UI, no idea how this should be done from a UX point of view)

Fix #665 #670
Use yo version 1.3.0

Fix #686
Updated gulp dependencies
Removed browserify for #688
Corrected imports in one-to-many relationships
Added foreign keys to the many-to-many relationship
Removed left join