Allow start.sh from any working directory

This change to start.sh allows it to be executed from any working directory and always reference the gogs binary in the parent directory. Very helpful when calling start.sh from an init script.

Conflicts:
	.gopmfile

Change chardet to gogits

Translation update

Add max-width to commit message of repo-files-table

Fix #799 by adding a tooltip for all dates in all settings/panels

Fix #795

fix for  #747

flexible the build scripts and add a freebsd build script

Initialize unset git user.email / user.name correctly; fix Dockerfile

The previous setting would cause all repo creations to fail, as
described in issue #328.
The previous commit also resolves this issue, but it seems saner to
create the user in the Dockerfile than at runtime.

The previous behavior was to set default values only if user.name was
not set, but to always set it for both. This only sets a value if there
wasn't one; this fixes cases where someone has a user.name but no
user.email (see included Dockerfile) or someone has a user.email but no
user.name (before the email would have been over-written).

Use the new build env on Travis

spellcheck

http://docs.travis-ci.com/user/workers/container-based-infrastructure

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