Update topNavigation.php

This small changes will look the navigation beautiful on mobile device with addition of small icon. I also rename the id="search-menu" with id="top-dropdown-menu" since "search-menu" is already used for search section.
Update _layout.php

add class login-screen to make login box not too down from the top
Update theme.css

add class login-screen to make login box not too down
Update profileHeader.php

Changes to make mobile view much better :)
Themeable Default Images for Spaces, Users, Modules (issue #7)
Fix Profile Fields and Categories translation issue
Updated the user add form email maxlength to 100
Added word-wrap for posts and comments #309
Merge pull request #302 from sonyarianto/master

Update topNavigation.php
Removed duplicated code and fit topNavigation changes
Fixed user mentioning not correctly translated in abstracts
Fixed broken images when using ImageMagick and filename contains whitespaces
Update OnlineModuleManager.php

Useful on slow server environment when we download/install module on HumHub. The default is 10000ms now become 30000ms and this is based on my VPS environment.
Updated translations (translate.humhub.org)
Merge pull request #304 from Ayvan/master

Add themeable Default Images for Spaces, Users, Modules and fix Profile translate issue
Merge pull request #315 from sonyarianto/master

Update OnlineModuleManager.php
Added missing button label translation
Updated translation files
Merge pull request #305 from zspine/patch-1

Updated the user add form email maxlength to 100
Fixed SpaceMemberWidget not used new following methods. (#318)