Update version in configure.ac to 3.5.2

No library interfaces were changed since 3.5.1.
Add CHANGELOG for 3.5.2
Update po files for 3.5.2
Add a note to add the version to the bug tracker for new releases.

Also important to update IRC and keep hydrated.
Update HACKING for brace rules

The rules in HACKING for braces are kind of unclear, so add some
more rules and provide examples too.
Add queries to If actions

This allows the If action to run queries against a client other than
the target of the actions being run, for example to check state on
the focused window while performing actions on another window during
focus cycling.

The syntax looks like

<action name="If">
  <query target="default">
    <title>FooBar</title>
    <maximized>yes</maximized>
  </query>
  <query target="focus">
    <desktop>3</desktop>
  </query>
  <then>
   <action name="NextDesktop"/>
  </then>
</action>

The above checks the client window that the actions will run on to
verify that its title is "FooBar" and that it is maximized. If that
is true, it also checks that the currently focused client window is
on desktop 3. If that is true also, then it runs the NextDesktop
action.

The target="" option can be set to "default" which uses the client
window that the actions will run on, or it can be "focus" which uses
the client window that is currently focused.

The <query> tag is optional, and the conditions inside the query can
be placed directly inside the If <action> tag, as they were before
this change. In that case, a default <query> tag is assumed with
target="default" which matches the previous behaviour.

Multiple <query> tags can be present, and they must all be true in
order to run the actions in <then>. If any one is false, the actions
in <else> will be run instead.
Remove the else-on-newline rule from HACKING
Add ForEach action which is like If but runs on all clients

Also adds a Stop action that lets you stop running, in case you only
want to run actions on the first match.
Allow matching class, name and role in If action
Add window type to If as well

This one required some extra helpers so is separate commit
Fix a typo causing submenuShowDelay to be ignored (Bug 6019)
Fix gcc warnings
Add the old <center> option for the placement policy. (Bug 5946)

Original commit messages:
. Reformat to move closer to house style
. Add center on top of leat overlap place algo
. Add sentinel value to edge arrays
. Use a Size instead of a Rect for a centering field
. Fix off by one bug
. Need to declare dx and dy
. Pass length of edge array instead of recomputing
. Fix missing open-brace in config.c
. Address the more trivial subset of danakj comments
. Revert "Remove now-unused config_place_center option."
  This reverts commit 5e282dae08be3b900e0337efa0fae8f3ffa92cd7.
. Remove reliance on sentinel value when scanning edge arrays
. Avoid need to initialize Size structure by removing it :)
. Clean up field expansion code somewhat
. Compress code further by using a structure for common args
. Fix search for next grid point
. Squeeze it even more by not using Size at all
Fix nits for overlap placement center option
Fix bugs and add unit tests for BSEARCH()

Also adds running unit tests to the release/go script so we can be
sure that all tests pass before we make a release.
Use the BSEARCH() macro in overlap placement

Currently the code rolls its own binary search, but now that we have
a well-tested binary search implementation in obt/ we can make use
of that.
Created a 'GrowToFill' action. (Bug 3356)
Clean up the FillToEdge action implementation

This extend the client_find_resize_directional() method to support
two growing modes, and return a bool for whether it was able to grow/shrink.

The client_find_resize_directional() method now takes an enum instead
of a bool, with two growing modes. The old mode which always tries to
grow, the a new mode that will only grow if the client's edge is not
already at a grow stopping point (ie against the edge of another window).
Allow FillToEdge to grow when all its edges are blocked.

This change points out how useless the return value from client_find_resize_directional()
was, so it also removes that.

When all edges are blocked, the FillToEdge action will try to grow all four edges agin
without blocking any of them on their current edge. This more closely matches the
behaviour of the GrowToEdge action.
Portuguese update for openbox