increase cache life for some controllers
new name for session name
[controller] cache response from Controller::displayText
mv dev/index.php to index_dev.php
fix paths in index_dev.php
File.php - rm chmod call
[view] do not replace dots with new lines for book.subtitle
cache feedback view for a day
[view] put a class 'user' on user links
mv pics to book-pic
add new route book/ID.pic for the legacy pics
[command] rm unneeded 'git push all'
Text: use Legacy::getInternalContentFilePath
Book: fix in template processing; return null from sfb/fb2 methods by non-sfb books
put a simple cache for anonymous users