Update PRoot & CARE manuals.
care: Fix "may be used uninitialized" warning.

The warning was:

    ./extension/care/care.c: In function "handle_host_path":
    ./extension/care/care.c:430:9: warning: "location" may be used uninitialized in this function [-Wmaybe-uninitialized]
      status = archive(tracee, care->archive, path, location, &statl);
             ^
Make PRoot & CARE buildable with Clang 3.3, without warnings.
Fix a typo in test-5bed7141 & test-5bed7141 introduced in commit dfe72e7d.
Do not disable the ASLR (Address Space Layout Randomization) anymore.

Disabling the ASLR creates constraints on the memory layout that makes
some programs confused, how ironic :)  For instance, the JVM can't
allocate one big chunk (> 1GB) of continuous memory at once on 32-bit
systems when running big applications like Eclipse.

Reported-by: Carlos Hernan PRADA ROJAS <carlos.prada-rojas@st.com>
Ref: http://avricot.com/blog/index.php?post/2010/05/03/Get-started-with-java-JVM-memory-%28heap%2C-stack%2C-xss-xms-xmx-xmn...%29
Ref: https://github.com/cedric-vincent/PRoot/issues/44
Fix temporary files & directories automatic deletion.

Temporary files created in care/final.c are now automatically removed,
and temporary directories are now removed without using external
programs ("find", "rm").
test-5bed7143: Update + remove temporary directory.
care: Update roadmap.
Move PRoot & CARE specific stylesheets into separate directories.
Make pop_component() return removed component + s/is_final/finality/.

This new behavior can be useful for some extensions.
Increase the pre-allocated heap size up to 16MB.

This does not affect the amount of physical memory usage, and this is
required for some build-systems.

Ref: https://github.com/cedric-vincent/PRoot/issues/43
Return expected error when chdir(2) to a non "searchable" directory.

This fixes the following tests from the Perl testsuite:

        ../cpan/File-Path/t/Path.t
        ../dist/ExtUtils-Command/t/eu_command.t
Fix a typo introduced in commit f82cc658.
Initial support for PTRACE_GETREGSET (not tested).
Fix english wording: s/allows to/allows one to/

Conflicts:
	doc/proot.1
Convert USER offsets from ptracer's ABI to PRoot's one.

This makes "proot-x86_64 -R slackware-14.0-x86 strace" works.
However, 32-bit versions of PRoot and GDB does not work yet on x86_64
hosts.
Run Coverity Scan analysis automatically through Tracis CI.
Fix *_temp_file(): argument to close(2) cannot be negative.

  *** CID 1198149:  Argument cannot be negative  (NEGATIVE_RETURNS)
  /src/path/temp.c: 258 in create_temp_file()
  257             fd = mkstemp(name);

  >>>     CID 1198149:  Argument cannot be negative  (NEGATIVE_RETURNS)
  >>>     "fd" is passed to a parameter that cannot be negative.

  258             close(fd);
  259             if (fd < 0) {

  *** CID 1198148:  Argument cannot be negative  (NEGATIVE_RETURNS)
  283        fd = mkstemp(name);
  284        if (fd < 0)
  285                goto error;

  [...]

  295     error:

  >>>     CID 1198148:  Argument cannot be negative  (NEGATIVE_RETURNS)
  >>>     "fd" is passed to a parameter that cannot be negative.

  296             close(fd);
Fix clean_temp_cwd(): free resource allocated by opendir(3).

  *** CID 1198150:  Resource leak  (RESOURCE_LEAK)
  45        dir = opendir(".");

  [...]

  78                      /* Recurse.  */
  79                      status = clean_temp_cwd();
  80                      if (status < 0)

  >>>     CID 1198150:  Resource leak  (RESOURCE_LEAK)
  >>>     Variable "dir" going out of scope leaks the storage it points to.

  81                              return status;
  [...]

  >>>     CID 1198150:  Resource leak  (RESOURCE_LEAK)
  >>>     Variable "dir" going out of scope leaks the storage it points to.

  106             return nb_errors;
  107     }
Convert "user" structures from ptracer's ABI to PRoot's one, if needed.

This makes ``proot-x86_64 -R slackware-14.0-x86 make -C
proot-x86/tests`` works, ie. it has the same pass rate as
``proot-x86_64 make -C proot-x86_64/tests``.  However, 32-bit versions
of GDB does not work yet on x86_64 hosts.