pass MetaData to alembic

this allows to use the autogenerate feature
abstract area title

This makes it easy to resolve an area identifier (e.g.
'proposals' or 'overview') to a human readble (and translated)
title.
Merge pull request #744 from xi/feature-area-title

abstract area title
Merge pull request #743 from xi/feature-alembic-autogen

pass MetaData to alembic
fix proposal inline pager showhide_button
fix proposal inline row spacing
don't show upload logo form for sectionpage section
fix: actually show help text in form select
Merge pull request #746 from xi/feature-fix-proposal-inline-row-spacing

fix proposal inline row spacing
update modernizer

2.0.6 -> 2.7.1

adds detection for

-  touch
-  history
-  flexbox
always show comment utils (fixes #748)
Merge pull request #747 from xi/feature-update-modernizr

update modernizer
fix tile image vertical align
Deterministic order for stylesheets buildout parts
write area to DOM

this can for example be used to write area specific CSS
dont hghlight tile buttons by default
Fix ret_status for force_path=''

d54224d3c977850f5a1424e3b544786d6b11f70f and friends led to
instance.join passing an empty string to `force_path`, which makes the
join redirect fail.
create sysvinit script to make automatic deployment work better.
compass: set encoding to prevent encoding error when compiling css files with unicode
rename controller helper method user.show