Add button show all in group search page
Refs: #2793
Group owner can update group description & homepage
remove obsolete view
merge with origin 0.6.4
Merge branch '0.6.4' into dev
- Editable group fields- Show all feature in search-
UI changes
- Show more/less button- Removed table sorting
Various presentation fixes
Fix code formatting to conform to the PEP 8 style guide
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