better tool tips

src/gui/project_view/project_view.ui

@@ -21,10 +21,10 @@
        <bool>true</bool>
       </property>
       <property name="toolTip">
-       <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Mass precision is computed by measuring all mass delta between theoretical peptide mass and observed peptide mass of all valid and manually checked proteins.&lt;/p&gt;&lt;p&gt;Each peptide evidence is only counted once (a peptide evidence is a spectrum associated to a peptide).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+       <string/>
       </property>
       <property name="currentIndex">
-       <number>3</number>
+       <number>1</number>
       </property>
       <widget class="QWidget" name="identifications">
        <attribute name="title">
@@ -207,7 +207,7 @@
       </widget>
       <widget class="QWidget" name="mass_precision">
        <property name="toolTip">
-        <string/>
+        <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Mass precision is computed by measuring all mass delta between theoretical peptide mass and observed peptide mass of all valid and manually checked proteins (but not decoy).&lt;/p&gt;&lt;p&gt;Each peptide evidence is only counted once (a peptide evidence is a spectrum associated to a peptide).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
        </property>
        <attribute name="title">
         <string>Mass precision</string>