accept values pretending to be a Numeric (like ActiveSupport::Duration), fixes #236
add test for when expires fails because of Time.parse

Signed-off-by: Konstantin Haase <konstantin.mailinglists@googlemail.com>
make time_for always raise an ArgumentError if something goes wrong
fix failing spec
typo
allow setting tilt version via env var
prepare for Tilt 1.3 (while remaining compatible with 1.2)
missing templates only raise Errno::ENOENT

plus that did not work anyways
update CHANGES
Remove has_rdoc= method from gemspec

Signed-off-by: Konstantin Haase <konstantin.mailinglists@googlemail.com>
update changes
better Tilt dependency

Signed-off-by: Konstantin Haase <konstantin.mailinglists@googlemail.com>
language
avoid nil.dup in Gemfile
allow disabling session_secret
disable session_secret for Sinatra::Application in development mode (makes sessions usable out of the box with shotgun)
don't cache request object in env, fixes #239
depend on Tilt 1.3
deprecate #erubis
add link to rubydoc.info in spanish readme

Signed-off-by: Konstantin Haase <konstantin.mailinglists@googlemail.com>