Remove GAP, PATTERN, LINECAP/JOIN and POSITION from symbolObj

[tbonfort]

These parameters have been migrated to the styleObj as their concept applies to styling a symbol rather than to a symbol itself.

TODO:

• remove references of these properties from the code
• update documentation
• update 6.0 migration guide

[tbonfort]

I'll attach a patch implementing the change.

giving ownership to Daniel, as I won't be able to commit the change if we move forward on this.

[tbonfort]

patch removing properties from symbolObj

[assefa]

if this is committed we need to upgrade mapscript. patchs were tested for python and php.

[dmorissette]

Committed the patches in SVN trunk r11472.

Keeping ticket open to update docs and migration guide.

[havatv]

Documentation for the mapfile SYMBOL object updated in r11475.

[havatv]

I have tried to update the symbol object documentation for mapscript in r11476. I am not familiar with mapscript functionality and documentation, so I have left the rest as it is (it seems a bit outdated).

[havatv]

I have updated the mapfile style documentation in r11494. LINEJOINMAXSIZE is not mentioned explicitly, but it has also been taken care of in the documentation.

[dmorissette]

Moving to docs component. (see comment:5 about mapscript docs updates)

Are we ready to close this ticket or should we expect more updates?

[havatv]

I have created ticket #3824 for updating the symbol construction document. I close this ticket and mark it as fixed. jmckenna can reopen if there are problems with for instance the mapscript documentation.

[tbonfort]

writeStyle() updated in r11516