Merge pull request #65 from asmasma21/master

Fixing #61 & #22: Add screenshot input to add and update slide form (adm...
add text to default screenshot
Merge pull request #66 from Chaasof/master

add text to default screenshot
fixind first-run screenshot and text for badge-reserved
Merge pull request #67 from Chaasof/master

fixind first-run screenshot and text for badge-reserved
fixed #73: wrong url in category menu (admin view)
Merge pull request #76 from Chaasof/new_master

fixed #73 : wrong url in category menu (admin view)