[Qgis-developer] GRASS version support

[Radim Blazek]

Hi,
I have added support for version_min/version_max attributes for
option/flag tags in .qgm files and for section/grass tags in .qgc
files. Then I have merged modules-common, modules-6.3, modules-6.4
into one dir modules and I have added the version attribute where
necessary.

Example from default.qgc:
<grass name="v.in.geonames" version_min="6.4"/>

Example from v.buffer.qgm:
<option key="buffer" version_max="6.3"/>
<option key="distance" version_min="6.4"/>

v.in.gns was only in modules-6.4 but according to GRASS man pages it
is available in GRASS 6.3 so I left it for all versions.
v.out.ogr.postgis.qgm was only in modules-6.3 but it may be replaced
by v.out.ogr.pg.qgm from modules-6.4 IMO, so v.out.ogr.pg.qgm (using
python script in QGIS) is now also available for all versions.

Radim