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Oracle7Adaptor v. 0.4d107

This is a fix release, just after having

- Corrected the bug I had after SELECT.
- DELETE works;
- INSERT works;
- UPDATE works;
- SELECT works;
- hasValidConnectionDictionary implemented;

- Remains a SEGV that appears when deallocating  autorelease pool.

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Oracle7Adaptor v. 0.4d93

Everything should be implemented at the same level than the Oracle8 
Adaptor, but there is a bug that occurs upon fetching.


- DELETE works,
- INSERT works,
- UPDATE should works, but the test hang at the SELECT FOR UPDATE just before.


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Oracle8Adaptor v. 0.6d29

This is only a fix of the current state. 

The adaptor has been renamed from 'Oracle' to 'Oracle8', since this
is based on the OCI v.8 API.

A branch will be done now to develop an 'Oracle8' adaptor, based on 
the OCI v.7 API.

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