Makefile improvements

* Respect system cflags, ldflags, packages can override them all with
  TABBED_{CFLAGS,LDFLAGS}. Remove -Wall and -Os and -s.
* Install README as documentation.
* dist: stream directly to a gzipped tarball.
* options: remove it.
* Add ".POSIX:"
* Remove config.mk

Makefile: simplify and remove hiding the build process

bump version to 0.7

Add OpenBSD support to config.mk

Signed-off-by: Lucas Gabriel Vuotto <lgv@nanashi.co>

Added xft support

Based on xft tabbed patch from the wiki.

Signed-off-by: Lucas Gabriel Vuotto <l.vuotto92@gmail.com>
Signed-off-by: Christoph Lohmann <20h@r-36.net>

Style cleanup

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Fix install paths and default build flag

Ensure that paths are quoted.
Compile with -Os by default.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

My libc wants _DEFAULT_SOURCE.

Release 0.6.

Noone likes -Wextra.

I don't have the time to care for X11 that much.

Adding more warnings and no debugging symbols.

Thanks Joerg Jung!

0.5 tabbed release.

Fixing the compile warning for setenv.

Changing the single-linked list for clients to a malloc()ed array. This makes
algorithms more efficient, that depend on the number of clients or shuffeling
around. The patch also adds new shortcuts to move tabs in their position. The
default color scheme is changed to the one of the maintainer.

Minor release version.

Releasing version 0.4.

next will be 0.3

next version is 0.2

reverting config.mk as it contains debug flags.

Handling maprequest. that means tabbed works for xterm.