Replace home icon with tab names

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/views/layouts/nav/_admin.html.haml

 %ul
   = nav_link(controller: :dashboard, html_options: {class: 'home'}) do
     = link_to admin_root_path, title: "Stats" do
-      %i.icon-home
+      Dashboard
   = nav_link(controller: :projects) do
     = link_to "Projects", admin_projects_path
   = nav_link(controller: :groups) do

app/views/layouts/nav/_dashboard.html.haml

 %ul
   = nav_link(path: 'dashboard#show', html_options: {class: 'home'}) do
     = link_to root_path, title: "Home" do
-      %i.icon-home
+      Activity
   = nav_link(path: 'dashboard#projects') do
     = link_to projects_dashboard_path do
       Projects

app/views/layouts/nav/_group.html.haml

 %ul
   = nav_link(path: 'groups#show', html_options: {class: 'home'}) do
     = link_to group_path(@group), title: "Home" do
-      %i.icon-home
+      Activity
   = nav_link(path: 'groups#issues') do
     = link_to issues_group_path(@group) do
       Issues

app/views/layouts/nav/_profile.html.haml

 %ul
   = nav_link(path: 'profiles#show', html_options: {class: 'home'}) do
     = link_to profile_path, title: "Profile" do
-      %i.icon-home
+      Profile
   = nav_link(controller: :accounts) do
     = link_to "Account", profile_account_path
   = nav_link(controller: :emails) do

app/views/layouts/nav/_project.html.haml

 %ul
   = nav_link(path: 'projects#show', html_options: {class: "home"}) do
     = link_to project_path(@project), title: "Project" do
-      %i.icon-home
+      Activity
 
   - if project_nav_tab? :files
     = nav_link(controller: %w(tree blob blame edit_tree new_tree)) do

features/steps/admin/active_tab.rb

@@ -4,7 +4,7 @@ class AdminActiveTab < Spinach::FeatureSteps
   include SharedActiveTab
 
   Then 'the active main tab should be Home' do
-    ensure_active_main_tab('Home')
+    ensure_active_main_tab('Dashboard')
   end
 
   Then 'the active main tab should be Projects' do

features/steps/dashboard/active_tab.rb

@@ -4,7 +4,7 @@ class DashboardActiveTab < Spinach::FeatureSteps
   include SharedActiveTab
 
   Then 'the active main tab should be Home' do
-    ensure_active_main_tab('Home')
+    ensure_active_main_tab('Activity')
   end
 
   Then 'the active main tab should be Issues' do

features/steps/profile/active_tab.rb

@@ -4,7 +4,7 @@ class ProfileActiveTab < Spinach::FeatureSteps
   include SharedActiveTab
 
   Then 'the active main tab should be Home' do
-    ensure_active_main_tab('Home')
+    ensure_active_main_tab('Profile')
   end
 
   Then 'the active main tab should be Account' do

features/steps/project/active_tab.rb

@@ -7,7 +7,7 @@ class ProjectActiveTab < Spinach::FeatureSteps
   # Main Tabs
 
   Then 'the active main tab should be Home' do
-    ensure_active_main_tab('Home')
+    ensure_active_main_tab('Activity')
   end
 
   Then 'the active main tab should be Settings' do

features/steps/shared/active_tab.rb

@@ -2,11 +2,7 @@ module SharedActiveTab
   include Spinach::DSL
 
   def ensure_active_main_tab(content)
-    if content == "Home"
-      page.find('.main-nav li.active').should have_css('i.icon-home')
-    else
-      page.find('.main-nav li.active').should have_content(content)
-    end
+    page.find('.main-nav li.active').should have_content(content)
   end
 
   def ensure_active_sub_tab(content)