group init
set group members meta cap and adjust loop
add group screens and handle actions within a group
starts adapting activities for groups
add ical link
override activities when rendez-vous is posted within a group, adapt some stuff as the plugin was only playing in users profiles
Rendez-vous slug needs to be in BuddyPress forbidden names

To avoid the rendez-vous user subnav to show up in a group named "Rendez-vous", use a filter to add the "rendez-vous" slug to BuddyPress forbidden names.

Fixes #12
Revisit the way translation is loaded

First check in WP_LANG_DIR/rendez-vous
Then try in plugin dir/languages
Then finish in WP_LANG_DIR/plugins

Fix #10
remove no more necessary var see #10
Manage group rendez-vous in case the group deactivated the component

If one or more rendez-vous are attached to a group and the admin deactivated the component, then the rendez-vous will be "detached" from the group as soon as a link to it has been clicked.

Once done redirect to the organizer rendez-vous page.

See #11
use group avatar in user's listing instead of the status dashicon.

If a rendez-vous is attached to a group, use the group avatar in user's listing and keep the status dashicon when in group's listing.

See #11
Make sure publishing/editing a rendez-vous from a non public group is generating a non public activity

See #11
Delete group activities relative to a rendez-vous if the rendez-vous component is no more active in the group.

See #11
Improve the way rendez-vous are removed from a group

If the user is no more in the group, we need to remove the rendez-vous he published in it, else he won't be able to access it anymore.
I do a check at 2 places :
- when building the rendez-vous group link
- when a rendez-vous group link was clicked

The second point can happen if the link was clicked from an email or an activity (edge case).

See #11
Improve caps mapping & change the used terms when a rendez-vous is restricted

In multisite using the 'read' cap will disallow simple members to use the plugin > switched to 'exist' to avoid this.
Add a capacity to subscribe to a rendez-vous
Set group admin caps
change status terms to 'Restricted', 'All members' or 'All group members'

See #11
Include a link to the icalendar file in the mail sent when a rendez-vous date is fixed
Help users to find the place to set the rendez-vous date

See #14
Make sure an organizer can set his preferences about available dates

Fixes #16
iCal Feature : make sure to output the link if the logged in user is an attendee or the organizer.
Make sure if the iCal download link was clicked from an email the rendez-vous still exist.
Fixes #15
Provides a way to change member's rendez-vous subnav order

Using the filter 'rendez_vous_member_default_subnav' it's now possible to define the attent subnav as the default one.

Fixes #14