[ENSCORESW-438]. Fixed API when someone can specify a _rna_edit where the substring length was not equal to the substituting string length

better testing of meta_coord and the container object. Now testing if updates work to existing data sets

Finished up some queries that are left hanging when an early exit is made. This was causing weirdness when fetching supercontigs and projecting them. ENSCORESW-429

9593 corresponds to gorilla gorilla, also known as Western gorilla, the species
9595 corresponds to gorilla gorilla gorilla, also known as western lowland gorilla, the genus of the animal represented in ensembl

also has a unigene species-specific source

if the production database value is NULL, we do not overwrite the existing value in the core-like database
this allows us to keep information like db_version which is database specific and should not be centrally held

Added a new option "-v" which will replace the string "####DB_VERSION####" by the value of the parameter "-v", in the introduction text.

[ENSCORESW-399] Fixing an issue reported from Steve Moss. We cause an exception because we do not check if we can project the cDNA location. Sometimes it is undefined.