DICOM import with missing CodeValues

[Jonathan Cole]

When attempting to import images which have the "Requested Procedure Code Sequence" tag but no value openrem_mg.py crashes after calling get_values.py from tools because the attribute called (seq[0].CodeValue) does not exist.

[Ed McDonagh]

Refs #68 Amended get_values.py to check that attribute exists before trying to access it, preventing crashes where the sequence is found but no value is present.

→ <<cset 0d4e9bc6ec2e>>

[Ed McDonagh]

Merged in jacole/openrem/jacole/refs-68-amended-get_valuespy-to-check-t-1395401551801 (pull request #5)

Addresses #68, needs a little more testing.

Refs #68 Attribute check for get_values.py

→ <<cset 5483cee08949>>

[Ed McDonagh]

Merged in jacole/openrem/jacole/refs-68-amended-get_valuespy-to-check-t-1395401551801 (pull request #5)

Addresses #68, needs a little more testing.

Refs #68 Attribute check for get_values.py

→ <<cset 5483cee08949>>

[Ed McDonagh]

Added tests folder with initial test for the get_values tool to test JA Cole's fix ref #68. Modified settings.py to enable tests to be run in dev env.

→ <<cset 48c5339a8764>>

[Ed McDonagh]

Tidied up get_value tests, added get_meaning tests. Fixes #68. Thanks to JA Cole.

→ <<cset bdb4a05306f3>>

[Ed McDonagh]

Merging branch used to create test scripts for missing code values fix ref #68.

→ <<cset 43e86d2e4e43>>