Added context help for apps and appman in English

.gitignore

@@ -14,7 +14,7 @@
 *.rej
 # OSX .DS_Store files
 .DS_Store
-# version scripts (repo master only) 
+# version scripts (repo master only)
 .version*
 Thumbs.db
 
@@ -27,6 +27,7 @@ custom/
 /store/
 # site apps
 apps/
+!doc/context/*/apps
 # default startpage
 home.html
 # page header plugin

doc/context/en/appman/help.html

@@ -0,0 +1,4 @@
+<dl class="dl-horizontal">
+  <dt>General</dt>
+  <dd>Edit individual properties of the app you selected. Categories allow you to sort your apps to help you find them in the list more easily. Support for custom apps you or your administrator may choose to create includes fields such as "Price of app" and "Location for purchase" that are not applicable to core Hubzilla apps.</dd>
+</dl>

doc/context/en/apps/edit/help.html

@@ -0,0 +1,4 @@
+<dl class="dl-horizontal">
+  <dt>General</dt>
+  <dd>Edit or delete your apps using the control buttons beside each app icon in the list.</dd>
+</dl>

doc/context/en/apps/help.html

@@ -0,0 +1,6 @@
+<dl class="dl-horizontal">
+  <dt>General</dt>
+  <dd>This page shows you what apps are available to your channel, including both core apps and those supplied by addons. To add an app to the <a href='#' onclick='contextualHelpFocus("#app-menu", 1); return false;' title="Click to open...">app menu</a> "star" the app in the list below.</dd>
+  <dt>Manage Apps</dt>
+  <dd>Press the "Manage Apps" button to open a page where you can edit the name, categories, and other properties of your apps.</dd>
+</dl>