Update README.md
Fix page module template
Changed login form message
Added doc "Pi Engine Architecture Diagram"
Merge pull request #111 from voltan/master

Fix page module template
Added Pi\File\Transfer\Download
Added Pi\Service\Log::mute() and Debugger::mute to disable debugger output for some use cases
Changed Log and Debugger mute return value for potential restore
Removed extenion on Http Transfer from Download since there is really no relevance
Adde download script for single file
Fixes Issue #113: Navigation page active is not properly detected
Fixed typo in changelog date
Fixed typos in default theme and added README.md
Added README.md for usr/theme/
Update README.md
Create README.md
Update README.md
Added inline comment
Typo fix
Update README.md