Merge pull request #171 from piwik/translationupdates

[automatic translation update] Updated 109 strings in 10 languages (de, fi, id, it, nl, sv, ta, th, tr, vi)
unused imports
fix typo in "releases"
Merge pull request #172 from waynn/patch-1

fix typo in "releases"
Prevent notice if git not being used and Manifest not found
allow using Piwik when installed as a Composer dependency
when installed as a Composer dependency, `.git/HEAD` only contains a commit hash
added customalerts plugin as a submodule
fix PHP version in composer.json
Merge pull request #174 from craue/fix-composer-php-version

5.3.2 PHP version in composer.json
Merge pull request #173 from craue/use-piwik-as-dependency

allow using Piwik when installed as a Composer dependency -- thanks for the PR!
removed old translation tool
Update LEGALNOTICE
added Jolla smartphone to UserAgentParserEnhanced.

Added Jolla as a new device brand.
Added Sailfish OS as a new OS.
Added SailfishBrowser as a new browser.
Merge pull request #176 from ngatnicdotmil/patch-2

Update LEGALNOTICE
Ading lessphp and Symfony console to LEGALNOTICE file
Merge branch 'master' of https://github.com/piwik/piwik
Merge pull request #177 from dawnbreak/Jolla

added Jolla smartphone to UserAgentParserEnhanced. Thanks for PR!
Clarifying inline help that freetype is required too
Merge branch 'master' of https://github.com/piwik/piwik