Minor UI display changes and repo file organization.

Fix positioning of "copy to" dialog on iPad when exporting spectrum, as well as fix export menu item.
For shielding/fit tool, add check if invalid best answer is found, and if so, try again a couple more times (seems to fix common cases where model fit wouldnt converge first time)
Add in app logo SVGs.

Author: wcjohns

.gitignore

@@ -1,4 +1,32 @@
 data/sandia.decay.xml
+InterSpec/InterSpec.entitlements
 target/ios/InterSpec/InterSpec.xcodeproj
 target/electron/app/node_modules
-*OUO*
+target/electron/app/data
+target/electron/app/InterSpec_resources
+target/electron/app/example_spectra
+target/electron/app/resources
+target/electron/app/release-builds
+target/ios/boost*
+target/ios/prefix
+target/ios/wt
+target/ios/libs
+*OUO*
+.svn
+.vscode
+.idea
+.DS_Store
+.cproject
+.project
+.svnignore
+XcodeFiles
+build
+build_*
+documentation
+testing
+README.txt
+*.tmp
+*.zip
+*.tgz
+*.bz2
+*.log

InterSpec/InterSpecApp.h

@@ -89,6 +89,7 @@ class InterSpecApp : public Wt::WApplication
               int priority = 1 );
 
   InterSpec *viewer();
+
 
   //userNameFromOS(): Caution, will return 'apache' if being served, from
   //  an apache server, 'mobile' if on a iOS device, or blank upon failure.

data/default_preferences.xml

@@ -33,8 +33,8 @@
  <pref name="SpecFileQueryCacheParse" type="Boolean">true</pref>
  <pref name="SpecFileQueryMaxSize" type="Integer">32</pref>
  <pref name="SpecFileQueryUnique" type="Boolean">true</pref>
- <pref name="GadrasDRFPath" type="String">data/OUO_GadrasDetectors;data/GenericGadrasDetectors;C:\GADRAS\Detector</pref>
- <pref name="RelativeEffDRFPaths" type="String">data/OUO_lanl_simplemass_detectors.tsv</pref>
+ <pref name="GadrasDRFPath" type="String">data/GenericGadrasDetectors;C:\GADRAS\Detector</pref>
+ <pref name="RelativeEffDRFPaths" type="String">data/rel_eff_drfs.tsv</pref>
  <pref name="ColorThemeIndex" type="Integer">-1</pref>
  <pref name="FileQueryEventQmlyFieldsFile" type="String">data/file_query_event_xml_fields.json</pref>
 </preferences>