[PRD-5114] Unable to Open From Repository a PRPT which contains non-ASCII characters
Merge pull request #423 from mdamour1976/5.1

[PRD-5114] Unable to Open From Repository a PRPT which contains non-ASCII characters
PRD-5129 - Subreport handling was overly cautious and even flagged banded subreports as invalid.
(cherry picked from commit 41f3f07)
Merge pull request #426 from tmorgner/PRD-5129-5.1

PRD-5129 - Subreport processing failed when reports were eligible for fast-exports due to overly strict asserts
PRD-5143 - Fast-Exports cannot handle dynamically generated elements, like rich-text content, as it evades the static analysis of the layout.
(cherry picked from commit 927fd64)
PRD-5144 - Fast-Excel Export routed the non-fast export to the wrong target and thus produced old Excel97 styles.
(cherry picked from commit 15d1cd6)
PRD-5143 - Golden sample update.
Merge pull request #431 from tmorgner/PRD-5144-5.1

PRD-5144 - Fast-Excel Export routed the non-fast export to the wrong tar...
Merge pull request #429 from tmorgner/PRD-5143-5.1

PRD-5143 - Fast-Exports cannot handle dynamically generated elements, li...
SP-1303 - Backport of PRD-4186 - postProcessResult() from Query Scripting is not called (5.1)
Merge pull request #445 from apratkin/SP-1303

SP-1303 - Backport of PRD-4186 - postProcessResult() from Query Scriptin...
[CLEANUP] -- Changed build.properties to reflect 5.1-SNAPSHOT
[SP-1429] - Backport of BISERVER-11952 - Failed to import Samples (5.1)

fix isValidVersion - made TRUNK version of reports always valid
Merge pull request #459 from aliakseihaidukou/SP-1429

[SP-1429] - Backport of BISERVER-11952 - Failed to import Samples (5.1)
SP-1397 Backport of PRD-5176 - Blank values for the whole column when the first value in that column is NULL in the generated PRPT report - e.g. Excel (5.1)

NULL field fixed