doc: fix typo
scripts: Add "zotonic logtail" convenience command
Merge pull request #626 from ArthurClemens/patch-6

doc: fix typo
admin: fix floating button halfway alert
mod_admin: fix replacing media items.
core: added 'is_all' option to #render{} and to the update action (where it is called include_all).
Merge pull request #628 from ArthurClemens/admin_undo_disconnected

admin: fix floating button halfway alert
mod_search: implement "or" in filter expression
mod_admin_identity: improve English dialogues
mod_admin_identity: password field should be of type "password"
Merge pull request #630 from ArthurClemens/admin_set_username

mod_admin_identity: improve set/change password dialogs
base: support for sending binary frames over a websocket.

Fixes #629.
(cherry picked from commit 087dba4979c667d944c1198a60d3f26597990220)
scripts: Follow symbolic links when adding a new site

When the skeleton dir is a symbolic link, the content of the link will
be copied and not the link itself. Copying the link itself breaks the
skeleton when the site is initialized.
scripts: Remove git repos when a new site is added

If the skeleton is managed in a git repo itself this information should
not leak into a new site.
core: add Steffen Hanikel to contributors file
mod_menu: Hide the removal option when a menu item is protected
core: after modules are re-indexed also flush the 'module_index' dependency key. Let cached lib file paths depend on that key. Fixes #663
mod_survey: Fix crashing survey results

Happened when a thurstone question was added after some survey results
were already entered.
doc: Clarified the template parameter of the template and page controllers.
Merge pull request #636 from hanikesn/documentation-clarfiy-template-rendering

doc: Clarified the template parameter of the template and page controlle...