Merge pull request #480 from PabloSerbo/master

I've just read your coding standards and updated the code to match.

plugins/cake/cake.plugin.zsh

 # Set this to 1 if you want to cache the tasks
-cacheTaskList=1
+cache_task_list=1
 
 # Cache filename
-cacheFile='.cake-task-cache'
+cache_file='.cake_task_cache'
 
 _cake_does_target_list_need_generating () {
 
-	if [ $cacheTaskList -eq 0 ]; then
+	if [ $cache_task_list -eq 0 ]; then
 		return 1;
 	fi
 
-	if [ ! -f $cacheFile ]; then return 0;
+	if [ ! -f $cache_file ]; then return 0;
 	else
-		accurate=$(stat -f%m $cacheFile)
+		accurate=$(stat -f%m $cache_file)
 		changed=$(stat -f%m Cakefile)
 		return $(expr $accurate '>=' $changed)
 	fi
@@ -21,8 +21,8 @@ _cake_does_target_list_need_generating () {
 _cake () {
 	if [ -f Cakefile ]; then
 		if _cake_does_target_list_need_generating; then
-			cake | sed -e "s/cake \([^ ]*\) .*/\1/" | grep -v '^$' > $cacheFile
-			compadd `cat $cacheFile`
+			cake | sed -e "s/cake \([^ ]*\) .*/\1/" | grep -v '^$' > $cache_file
+			compadd `cat $cache_file`
 		else
 			compadd `cake | sed -e "s/cake \([^ ]*\) .*/\1/" | grep -v '^$'`
 		fi