TRUNK-4338: Added "Manage Providers" privileges to prevent unauthorized access

Added "Manage Providers" privilege to "Add Provider" link and changed privilege of providerForm.jsp to only allow users with "Manage Providers" privilege to view it
trunk-4297
trunk-4297
trunk-4297
Cannot create runtime properties during first installation - TRUNK-4320
TRUNK-4109: Get observations by accession number

org.openmrs.api.ObsService#getObservations and
org.openmrs.api.ObsService#getObservationCount are now overloaded to support
specification of accession number.
If specified, only observations (or their count) with matching accession
number are returned.

See https://issues.openmrs.org/browse/TRUNK-4109

Unit tests for org.openmrs.api.ObsService#getObservations and
org.openmrs.api.ObsService#getObservationCount now use the new
(and most general) methods.
Ignoring another dwr-modules.xml
Merge pull request #959 from vencik/master

TRUNK-4109: Get observations by accession number
Merge pull request #952 from geoff-wasilwa/TRUNK-4338

TRUNK-4338: Added "Manage Providers" privileges to prevent unauthorized access
Merge pull request #955 from ujjwalarora/TRUNK-4297

Trunk-4297 : Invalid Error Message for Blank Password
removing autogenerated file - trunk-4297
TRUNK-4315: Validate on client side (javascript)

Decided to validate on client side because on server side calling provider.getName()
when person is set will return person's full name and so it is not possible to tell if
this was set on the client side.

TRUNK-4315 - Removed commented out code
TRUNK-4315 - Ammended method for checking whether person or provider name is provided