added a way to force the installation of the Acme demo bundle
added some info on the CLI when installing the Acem demo bundle
update the build script to take into account the new way to install the Acme demo bundle
Fix undefined variable $warmup
bug #123 Fix undefined variable $warmup (KingCrunch)

This PR was merged into the 3.0.x-dev branch.

Discussion
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Fix undefined variable $warmup

Actually self explaining

Commits
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76c7b2d Fix undefined variable $warmup
use route path for demo bundle
use route path for configurator
bug #124 use route path for demo bundle (Tobion)

This PR was merged into the 3.0.x-dev branch.

Discussion
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use route path for demo bundle

Commits
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61ad5d7 use route path for demo bundle
bug #125 use route path for configurator (Tobion)

This PR was merged into the 3.0.x-dev branch.

Discussion
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use route path for configurator

Commits
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e3c0085 use route path for configurator
Fix undefined property error
bug #127 Fix undefined property error (umpirsky)

This PR was merged into the 3.0.x-dev branch.

Discussion
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Fix undefined property error

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| License       | MIT

This PR fixes bug `Undefined property: Composer\Script\CommandEvent::$getIO` in `clearCache()` and `installAssets()` handlers.

Commits
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fd82012 Fix undefined property error
fixed pbe now that security.yml is not empty by default anymore
fixed build script when version does not exist
Add new directory structure handler