DE21884: Create defect in EDP does not work if the Release field is hidden.

Stop setting release and iteration to 'u' via URL parameters when their value is unscheduled.
There's nothing special about 'u' except that it is invalid for a release or iteration ref.
Leaving them off and letting them default works just as well and won't try to set the value to
'u' if one of the fields is hidden.
appsdk-bump-app-catalog 92 bumping sdk to 2630-1397c17

sdk commit: RallySoftware/appsdk@1397c17a2409c55c5cef449a36f892bf9f5590bc
author: Matt Parrish and Doug Diehnelt
message: Added respondwithString method to ajax stub
appsdk-bump-app-catalog 93 bumping sdk to 2631-96a3829

sdk commit: RallySoftware/appsdk@96a38291fa15d60e93c3a5dfc2ec217162c8897f
author: Robb Lee
message: S70138: Added new Model Factory and Proxy for use with search endpoint to enable use of TreeGrid on a new search page
S70208 - Add tests for ALM chart builder bridge
appsdk-bump-app-catalog 94 bumping sdk to 2635-03031e5

sdk commit: RallySoftware/appsdk@b26e1dec9edda81e8f359a79a7a558fd5ac75df5
author: Ashly Simmons
message: creating styling best practices guidelines

sdk commit: RallySoftware/appsdk@03031e5c7e37acc7ed1cb781407616483d7d8340
author: Robb Lee
message: S70871: added ability to hide the row action column on the TreeGrid, default behavior is to show it
appsdk-bump-app-catalog 95 bumping sdk to 2637-9cd75d5

sdk commit: RallySoftware/appsdk@6aa0afa61ae450c19e1aa17e41d0cf8169f3bd08
author: Will Piers and Will Klein
message: S70032, TA63742: Add Rally.util.String.htmlEncode as alias to Ext.String.htmlEncode.
S70874 - Create/show Milestone page
Revert "S70874 - Create/show Milestone page"

This reverts commit cd5656e2fae91147fd21a36943ab53c6d8d212ec.
S70874 - Create/show Milestone page

This reverts commit 820ae202d0b7d08c6e98e5395280497119458189.
appsdk-bump-app-catalog 96 bumping sdk to 2639-656b8e3

sdk commit: RallySoftware/appsdk@656b8e341d1d307cae594ad9c00a3963b618c3ba
author: Wade Peterson and Rick Lansky
message: S70874 - Create/show Milestone page
appsdk-bump-app-catalog 98 bumping sdk to 2641-cbfcb43

sdk commit: RallySoftware/appsdk@cbfcb439f2b9fa0f39faa6043a0a4a9a202d894d
author: Robb Lee and Jeff Smith
message: S70871: updated formatted id template to no create detail link if the data indicates that the item is 'Recycled'
DE21947: Discussions do not appear in Release Planning Board cards
appsdk-bump-app-catalog 100 bumping sdk to 2642-29a5602

sdk commit: RallySoftware/appsdk@29a560265c6a112e993072b9b1d00a1a6ec08d61
author: Garston Tremblay and Richard Green
message: S69997: Update PI Kanban filtering component with Rogers filtering component
S69997: Update PI Kanban filtering component with Rogers filtering component
appsdk-bump-app-catalog 101 bumping sdk to 2643-654d684

sdk commit: RallySoftware/appsdk@654d68434062d94ecf8f95c4daa383212209ab1e
author: mmcclellan-rally
message: S69444: Create initial portfolio item EDP
appsdk-bump-app-catalog 103 bumping sdk to 2644-826a507

sdk commit: RallySoftware/appsdk@826a5078bd00bbb2f1437f400cf88657b210611e
author: Ben Ridge and Mike Holm
message: S68450: show top-level PIs in TreeGrid
S68450 show top-level PIs for TreeGrid
appsdk-bump-app-catalog 104 bumping sdk to 2646-3011047

sdk commit: RallySoftware/appsdk@3011047c71efb070d6fa0302c3637db5e6ba1513
author: Garston Tremblay and Richard Green
message: DE21951 - Preliminary estimate field doesn't load on new filtering component
S68450 fix to show FormattedID in Custom TreeGrid app.
S70871: updated IterationTrackingTreeGrid to specify the help link text for the no data display