[fix #133] Better logging on module startup

As soon as the logger gets created in the common bundle and in all other
bundle activators, we log exceptions in the log file.

Closes #133
[fix #134] Remind username and email

When a user registers to \BlueLaTeX, a validation email is sent with
instructions to set the password.

Reminding about the chosen username and email address might be good even
if the user receives the mail at the registered address, and the
username appears in the validation link.

Explicit stuffs are always better than implicit ones.

Closes #134
Improve the selection of authors and reviewers

The enter key is now used to select a user instead of submitting the
form.
[fix] French and English typos
[Fix] Update the table of contents with the latest paper version

The table of contents was updated with the paper content of the previous
change. The table of content now uses the latest paper version.
[fix] Fix the foreground color of the connected user list

Only the foreground color of the label have to fit to the background
color
[add #143] Simplify the creation of a paper

The title filed is autocompleted with the value of the name field.
[fix #139] Disallows ":" in username

Restrict the use of ":" (colon) in the username
Merge pull request #149 from tdurieux/fix_minor_bugs

Some minor bugs fix
Merge pull request #140 from satabin/fix/134

[fix #134] Remind username and email
Merge pull request #142 from satabin/fix/133/better-osgi-logging

[fix #133] Better logging on module startup
Improves tooltip message for compilations interval

The meaning of this settings is independent from the compilation
setting, whether it is background or explicit, it represents the minimum
amount of time to wait between two compilations.
Merge branch 'monperrus/typo2' into v1.0.x
[add #146] Add a share button in paper page

Add a popup used to manage paper permissions.