adds handling of the /thali_ special processing

[cicorias]

provides a callback on the signature that caller provides
closes #5

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This change is

[coveralls]

Coverage increased (+0.1%) to 94.118% when pulling 8f797db on thaliidhandling into e9e2674 on master.

[coveralls]

Coverage increased (+0.4%) to 94.34% when pulling 5ec17a7 on thaliidhandling into e9e2674 on master.

[yaronyg]

Reviewed 10 of 11 files at r1, 1 of 1 files at r2.
Review status: all files reviewed at latest revision, 1 unresolved discussion.

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test/test-thali-callback.js, line 32 [r2] (raw file):
Could you please just add one more test where you submit a request that is syntactically correct and is the right method and object (e.g. all o.k. by the base acl)but where the ID does not match validId? just want to make sure that a false will be handled properly by the code.

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Comments from Reviewable

[cicorias]

Review status: 10 of 11 files reviewed at latest revision, 1 unresolved discussion.

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test/test-thali-callback.js, line 32 [r2] (raw file):
Done.

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Comments from Reviewable

[coveralls]

Coverage increased (+0.4%) to 94.34% when pulling c725f36 on thaliidhandling into e9e2674 on master.

[yaronyg]

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Reviewed 1 of 1 files at r3.
Review status: all files reviewed at latest revision, all discussions resolved.

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Comments from Reviewable