Fixes #3696 : don't display system directives nor categories
Fixes #3719: change link for <<n accepted nodes>> on home page
fixes #3729 logo design
Merge pull request #253 from jooooooon/bug_3719/change_link_for_accepted_nodes_on_home_page

Fixes #3719: change link for <<n accepted nodes>> on home page
Merge pull request #254 from aesraethr/ust_3728/design/logo_powerboat

fixes #3729 logo design
Merge pull request #246 from ncharles/bug_3696/dev/dont_display_system_directives

Fixes #3696 : don't display system directives nor categories
Fixes #3735 - Change link to rudder-doc from /usr/share/rudder to /usr/share/rudder/html
Fixes #3718: order technique versions in directive management screen
Merge pull request #257 from fanf/bug_3718/technique_versions_not_ordered

Fixes #3718: order technique versions in directive management screen
Merge pull request #256 from nperron/ust_3692/int/3735_change_link_to_rudder-doc

Fixes #3735 - Change link to rudder-doc from /usr/share/rudder to /usr/s...
Fixes #3688: Repaire JS broken in group and directive screens
Merge pull request #260 from fanf/bug_3688/dev/all_js_is_broken_for_group_and_directive_screens

Fixes #3688: Repaire JS broken in group and directive screens
Merge branch 'branches/rudder/2.5' into branches/rudder/2.6
Merge branch 'branches/rudder/2.6'
Fixes #3736: allows to choose technique version for directive creation
Merge pull request #258 from fanf/ust_2797/dev/3736_choose_technique_version_for_new_directives

Ust 2797/dev/3736 choose technique version for new directives
Ref #3000 : API Rest Utils
Fixes #3280 : Add API Rest for Rules
Fixes #3294: API Rest for Directives
Fixes #3295 : API Rest for Groups