[Gemspec] Bump Xcodeproj to `'>= 1.5.5', '< 2.0'`

Gemfile.lock

@@ -7,7 +7,7 @@ GIT
 
 GIT
   remote: https://github.com/CocoaPods/Core.git
-  revision: c67c10dc718bae4c07bdfb78d8917134432aaff4
+  revision: b24b82511b8ed5a6f93e2a9f74bbdc9c33da8672
   branch: master
   specs:
     cocoapods-core (1.4.0)
@@ -17,7 +17,7 @@ GIT
 
 GIT
   remote: https://github.com/CocoaPods/Molinillo.git
-  revision: 8d27371a82ef219ac475cea14e5de2b70b108036
+  revision: 75cbdbeedbb56f0819110faba1a0c2219348deb5
   branch: master
   specs:
     molinillo (0.6.4)
@@ -31,10 +31,10 @@ GIT
 
 GIT
   remote: https://github.com/CocoaPods/Xcodeproj.git
-  revision: 531d8aa8ab4805c84f5e0fe94181ae3995430d05
+  revision: a95a8b831d451ae25ceb7749c5a27a37b1961f79
   branch: master
   specs:
-    xcodeproj (1.5.4)
+    xcodeproj (1.5.5)
       CFPropertyList (~> 2.3.3)
       atomos (~> 0.1.0)
       claide (>= 1.0.2, < 2.0)
@@ -130,7 +130,7 @@ PATH
       molinillo (~> 0.6.4)
       nap (~> 1.0)
       ruby-macho (~> 1.1)
-      xcodeproj (>= 1.5.4, < 2.0)
+      xcodeproj (>= 1.5.5, < 2.0)
 
 GEM
   remote: https://rubygems.org/
@@ -144,7 +144,7 @@ GEM
     addressable (2.5.1)
       public_suffix (~> 2.0, >= 2.0.2)
     ast (2.2.0)
-    atomos (0.1.0)
+    atomos (0.1.1)
     awesome_print (1.6.1)
     bacon (1.2.0)
     claide-plugins (0.9.2)
@@ -182,7 +182,7 @@ GEM
     ffi (1.9.6)
     fourflusher (2.0.1)
     fuzzy_match (2.0.4)
-    gh_inspector (1.0.3)
+    gh_inspector (1.1.0)
     git (1.3.0)
     hashdiff (0.3.1)
     i18n (0.9.3)
@@ -205,7 +205,7 @@ GEM
       rb-kqueue (>= 0.2)
     metaclass (0.0.4)
     method_source (0.8.2)
-    minitest (5.11.1)
+    minitest (5.11.3)
     mocha (1.2.1)
       metaclass (~> 0.0.1)
     mocha-on-bacon (0.2.3)

cocoapods.gemspec

@@ -38,7 +38,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'cocoapods-trunk',       '>= 1.3.0', '< 2.0'
   s.add_runtime_dependency 'cocoapods-try',         '>= 1.1.0', '< 2.0'
   s.add_runtime_dependency 'molinillo',             '~> 0.6.4'
-  s.add_runtime_dependency 'xcodeproj',             '>= 1.5.4', '< 2.0'
+  s.add_runtime_dependency 'xcodeproj',             '>= 1.5.5', '< 2.0'
 
   ## Version 5 needs Ruby 2.2, so we specify an upper bound to stay compatible with system ruby
   s.add_runtime_dependency 'activesupport', '>= 4.0.2', '< 5'