Use correct url for the delete share request

Modify delete function to set the right url for deleting the share
Pool delete - add pool name to the url for delete

Add the pool name to the url for pool delete
Fixes #88

Don't allow deletion of a pool until all shares in that pool are deleted.
Merge pull request #122 from sujeetsr/issue#100_pool_delete

Pool delete - add pool name to the url for delete
Merge pull request #121 from sujeetsr/issue#102_delete_share

Use correct url for the delete share request
Merge branch 'issue#88_pool_deletion' of https://github.com/schakrava/rockstor-core into schakrava-issue#88_pool_deletion
Fixes #80
Fixes #79

Enforce a minimum/maximum allowed size for a share during its creation in the share api
implementation. Make acceptable minimum and maximum values as config variables
in settings.py.

Ensure the above constraint is satisfied for share resize as well. In addition,
throw error when the new size given in the resize request is smaller than the
current usage of the share.
Show error on pool delete error

Add showError call for error callback on pool delete
Disabled the delete button when the request is in progress
Merge pull request #126 from schakrava/issue#80_share_min_size

Fixes #80