Update active committers and support white papers part (#8)

* Update active committers

- add social icons
- update informations about committers

* Remove useless images

* Use the .png format for the petals logo

* Update support page

- add new links of videos conferences
- use external link

Author: christophechevalier

_includes/header.html

@@ -1,6 +1,6 @@
 
 <div id="top">
-	<a href="/index.html"><img src="/resources/images/logo_petals.png.jpeg" alt="Petals ESB" /></a>
+	<a href="/index.html"><img src="/resources/images/logo_petals.png" alt="Petals ESB" /></a>
 	<br />
 
 	<a {% if page.menu == "overview" %}class="active-menu"{% endif %} href="/overview.html">Overview</a>

community.md

@@ -27,11 +27,13 @@ menu: "community"
 
 *Active committers on Petals ESB and related projects.*
 
-* Alexandre Lagane (Linagora) - [@alagane](https://github.com/alagane)
-* Bertrand Escudié (Linagora) - [@bescudie](https://github.com/bescudie)
-* Christophe Chevalier (Linagora) - [@christophechevalier](https://github.com/christophechevalier)
-* [Christophe Deneux](https://www.linkedin.com/in/cdeneux/) (Linagora) - [@chrisdeneux](https://twitter.com/ChrisDENEUX) - [@cdeneux](https://github.com/cdeneux)
-* [Pierre Souquet](https://fr.linkedin.com/in/pierre-souquet-18955528) (Linagora) - [@psouquet](https://github.com/psouquet)
+* [Alexandre Lagane](https://www.linkedin.com/in/alexandrelagane) (Linagora) - [![GitHub](./resources/images/github_mark_32px.png "GitHub")](https://github.com/alagane)
+* [Bertrand Escudié](https://www.linkedin.com/in/bertrand-escudie-4611732) (Linagora) - [![GitHub](./resources/images/github_mark_32px.png "GitHub")](https://github.com/bescudie)
+* [Christophe Chevalier](https://www.linkedin.com/in/cchevalier-fr) (Linagora) - [![GitHub](./resources/images/github_mark_32px.png "GitHub")](https://github.com/christophechevalier)
+* [Christophe Deneux](https://www.linkedin.com/in/cdeneux/) (Linagora) - [![GitHub](./resources/images/github_mark_32px.png "GitHub")](https://github.com/cdeneux) [![Twitter](./resources/images/twitter_32px.png "Twitter")](https://twitter.com/ChrisDENEUX)
+* [Grégoire Maria](https://www.linkedin.com/in/grégoire-maria-646507150) (Linagora) - [![GitHub](./resources/images/github_mark_32px.png "GitHub")](https://github.com/gregoire31)
+* [Julian Koune](https://www.linkedin.com/in/juliankoune) (Linagora) - [![GitHub](./resources/images/github_mark_32px.png "GitHub")](https://github.com/BanhCam)
+* [Pierre Souquet](https://fr.linkedin.com/in/pierre-souquet-18955528) (Linagora) - [![GitHub](./resources/images/github_mark_32px.png "GitHub")](https://github.com/psouquet)
 
 
 # Former Committers
@@ -42,7 +44,7 @@ menu: "community"
 * Adrien Ruffie (Petals Link)
 * Anne-Marie Barthe (Petals Link)
 * Charles Casadei (Petals Link)
-* Christophe Hamerling (Linagora) - [Twitter](https://twitter.com/chamerling) - [Github](https://github.com/chamerling) - [Blog](http://chamerling.org)
+* Christophe Hamerling (Linagora) [![GitHub](./resources/images/github_mark_32px.png "GitHub")](https://github.com/chamerling) [![Twitter](./resources/images/twitter_32px.png "Twitter")](https://twitter.com/chamerling) - [Blog](http://chamerling.org)
 * Frédéric Gardes (Petals Link)
 * Gaël Blondelle (Petals Link)
 * Julien Lesbesguieres (Linagora)
@@ -64,7 +66,7 @@ menu: "community"
 * Sébastien André (Petals Link)
 * Thierry Déjean (Petals Link)
 * Victor Noël (Linagora)
-* Vincent Zurczak (Linagora) - [@vincent-zurczak](https://github.com/vincent-zurczak) - [Blog (EN)](http://vzurczak.wordpress.com) - [Blog (FR)](http://vzurczak2.wordpress.com)
+* Vincent Zurczak (Linagora) - [![GitHub](./resources/images/github_mark_32px.png "GitHub")](https://github.com/vincent-zurczak) - [Blog (EN)](http://vzurczak.wordpress.com) - [Blog (FR)](http://vzurczak2.wordpress.com)
 
 
 # Contributors

resources/images/download_petals-esb_3.1.png

@@ -39,6 +39,11 @@ img {
 	border: none;
 }
 
+img[alt="GitHub"], img[alt="Twitter"] { 
+	width: 20px; 
+	vertical-align: middle;
+}
+
 p {
 	line-height: 1.6em;
 	text-align: justify;

resources/images/download_petals-esb_mini_1.1.png

@@ -11,14 +11,21 @@ The official Petals documentation is available at [doc.petalslink.com](https://d
 
 # White Papers
 
-The Petals team has written several white papers.
+The Petals team has written several white papers:  
 
-* [A series of articles](https://blog.linagora.com/vision-des-esbs-par-un-architecte-dentreprise-ou-ce-que-devraient-etre-les-esbs/) written by an Enterprise Architect (in French).
+* [A series of articles](https://blog.linagora.com/vision-des-esbs-par-un-architecte-dentreprise-ou-ce-que-devraient-etre-les-esbs) written by an Enterprise Architect (in French).
 * In French: [Petals ESB, un bus de services](resources/pdf/Livre_blanc_ESB_Petals.pdf)
 * [How to choose your process orchestration technology?](resources/pdf/white_paper_orchestration.pdf)
 
 Various presentations are also available on [Slide Share](https://slideshare.net/petalslink).
 
+And here are some video conferences we hold in the past:
+
+* [Convergence BPM-SOA](https://webcast.in2p3.fr/video/convergence_bpm_soa)  
+* [SOA, late binding and technical agility](https://webcast.in2p3.fr/video/soa_late-binding_et_agilite_technique_linagora)  
+* [SOA/WOA/ROA, ins and outs](https://webcast.in2p3.fr/video/soa_woa_roa_tenants_et_aboutissants__linagora)  
+* [ACOSS/URSSAF, success story with Petals ESB](https://vimeo.com/9753731).  
+
 
 # Community Support