fix issue of current app item in corp membership module
Update custom.css

Change to style on .logo img
With width on .logo .img set to 100% the image was automatically resizing to take up 100% of the col area which distorted the image. 
By changing max-width to 100% image size is restricted without distortion and image stays responsive.
clean up template; add missing links; update missing links; check enabled or disabled for apps
Merge branch 'master' into 1301_tendenci_admin_mega_menu
added updates to include directories on the the current app
Merge branch '1301_tendenci_admin_mega_menu' into bixly-testing