Bump version to 0.1.2

Fixed a bug with alias resolution not working, for reasons that are
currently beyond my understanding of shell scripting it would seem.

bin/tmuxifier

@@ -26,7 +26,7 @@ case "$command" in
   * )
     # Lookup command, attempt to resolve as alias if fails
     ! command_path="$(command -v "tmuxifier-$command")"
-    if [ ! -n $? ]; then
+    if [ -z "$command_path" ]; then
       resolved="$(tmuxifier-alias "$command")"
       if [ ! -z "$resolved" ]; then
         ! command_path="$(command -v "tmuxifier-$resolved")"

libexec/tmuxifier-completions

@@ -20,7 +20,7 @@ fi
 
 # Lookup command, attempt to resolve as alias if fails
 ! command_path="$(command -v "tmuxifier-$command")"
-if [ ! -n $? ]; then
+if [ -z "$command_path" ]; then
   resolved="$(tmuxifier-alias "$command")"
   if [ ! -z "$resolved" ]; then
     ! command_path="$(command -v "tmuxifier-$resolved")"

libexec/tmuxifier-help

@@ -12,7 +12,7 @@ command="$1"
 
 # Lookup command, attempt to resolve as alias if fails
 ! command_path="$(command -v "tmuxifier-$command")"
-if [ ! -n $? ]; then
+if [ -z "$command_path" ]; then
   resolved="$(tmuxifier-alias "$command")"
   if [ ! -z "$resolved" ]; then
     command="$resolved"

libexec/tmuxifier-version

@@ -2,4 +2,4 @@
 set -e
 [ -n "$TMUXIFIER_DEBUG" ] && set -x
 
-echo "0.1.1"
+echo "0.1.2"