Bump version code for 1.7.1

Chromium version 1.1 + do not minify

Compare semantic versions

Add a method StringUtils.compareVersions() that compares semantic
versions. We assume that versions are defined as integer numbers separated by periods ('.'), but the method also takes into account
empty strings and the possibility that some components can not be
parsed as integers.

Use StringUtils.compareVersions() to check the version of the
PICO operating system when enabling passthrough.

Tests are included.

Environments for v1.0

We had to add a different JSON file for the Chromium environments
because it has a different version number. Also the release notes
blog post is different.

Bump version code for 1.7.0

Bump version name for 1.6.2

[Chromium] Beta release build changes

These are the build changes for the beta release
* Use 0.9.1 version
* Changed the name of the app to Wolvic Chromium (beta)
* Added ".chromium" to the package name to avoid clashes

Bump version name for 1.6.1

[Chromium] Remove Mozilla accounts from UI

In particular do not show neither the accounts settings dialog on the
first run and also hide the accounts setup button in the Settings.

We had to disable it for the beta release because the login page does
not load properly with a non-Gecko engine because the Mozilla AC try
to inject a Gecko extension to perform some actions. As we don't have
extensions support yet, the page fails to load.

Bump version code for 1.6.0